Amazon S3 MCQ Questions and Answers

Mastering Amazon S3 is crucial for cloud certification success. This dedicated practice set features 156 Amazon S3 MCQ questions and answers designed to mirror real exam scenarios across various AWS certifications.

📝 156 Questions⏱️ 90 min🎯 Pass: 70%

About Amazon S3 Practice Questions

This detailed quiz focuses on Amazon S3, covering key concepts and scenarios often found in AWS exams.

  • Comprehensive coverage of Amazon S3 features.
  • Scenario-based questions testing design and troubleshooting skills.
  • Detailed explanations to reinforce learning.

All 156 Amazon S3 Questions

Browse through the complete list of questions and answers below. Use this resource to review specific concepts or check your understanding of Amazon S3.

1

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
2

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
3

Which S3 storage class is best suited for data that is accessed frequently and requires high availability?

S3 Standard
S3 Intelligent-Tiering
S3 Standard-IA
S3 Glacier
View Explanation
✓ Correct Answer: S3 StandardExplanation:S3 Standard offers high durability, availability, and performance object storage for frequently accessed data.
4

You want to host a static website using Amazon S3. What is the URL format typically used for a bucket named 'my-web-bucket' in the 'us-east-1' region?

http://my-web-bucket.s3-website-us-east-1.amazonaws.com
http://s3.amazonaws.com/my-web-bucket
http://my-web-bucket.us-east-1.s3.amazonaws.com
http://website.my-web-bucket.amazonaws.com
View Explanation
✓ Correct Answer: http://my-web-bucket.s3-website-us-east-1.amazonaws.comExplanation:Static website endpoints follow a specific pattern that includes the bucket name and the region-specific website endpoint.
5

Which S3 feature allows you to automatically transition objects to a cheaper storage class based on their age?

S3 Lifecycle Management
S3 Versioning
S3 Replication
S3 Transfer Acceleration
View Explanation
✓ Correct Answer: S3 Lifecycle ManagementExplanation:Lifecycle policies help you manage your objects so they are stored cost-effectively throughout their lifecycle.
6

What is the purpose of S3 Versioning?

To keep multiple variants of an object in the same bucket
To increase the speed of uploads
To encrypt data at rest
To provide public access to private files
View Explanation
✓ Correct Answer: To keep multiple variants of an object in the same bucketExplanation:Versioning protects you from accidental deletions and overwrites by preserving older versions of an object.
7

Which S3 storage class offers the lowest cost for long-term data archiving with retrieval times ranging from minutes to hours?

S3 Glacier Flexible Retrieval
S3 Standard-IA
S3 One Zone-IA
S3 Intelligent-Tiering
View Explanation
✓ Correct Answer: S3 Glacier Flexible RetrievalExplanation:Glacier Flexible Retrieval is a low-cost storage class for archive data that doesn't require immediate access.
8

How can you grant temporary access to a private S3 object to a specific user without changing bucket policies?

Generate a Pre-signed URL
Enable Public Access temporarily
Use an IAM Role
Use S3 Transfer Acceleration
View Explanation
✓ Correct Answer: Generate a Pre-signed URLExplanation:Pre-signed URLs give others access to your objects for a limited time using your credentials.
9

Which S3 feature uses Amazon CloudFront's globally distributed edge locations to speed up long-distance uploads to your bucket?

S3 Transfer Acceleration
S3 Multipart Upload
S3 Replication
S3 Select
View Explanation
✓ Correct Answer: S3 Transfer AccelerationExplanation:Transfer Acceleration enables fast, easy, and secure transfers of files over long distances.
10

What is the maximum size of a single object that can be stored in Amazon S3?

5 Terabytes
100 Gigabytes
1 Petabyte
Unlimited
View Explanation
✓ Correct Answer: 5 TerabytesExplanation:While S3 can store unlimited total data, a single object cannot exceed 5 TB.
11

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
12

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
Share full administrative credentials
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
13

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
14

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
15

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
16

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
17

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
18

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
19

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
20

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
21

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
22

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
23

A company stores sensitive logs in S3. Regulatory requirements dictate that these logs must be protected from deletion or modification for 7 years, even by an administrator. Which S3 feature should be implemented?

S3 Object Lock in Compliance Mode
S3 Object Lock in Governance Mode
Bucket Policy with Deny on s3:DeleteObject
S3 MFA Delete
View Explanation
✓ Correct Answer: S3 Object Lock in Compliance ModeExplanation:Compliance mode ensures that the object cannot be deleted by any user, including the root user, during the retention period.
24

An architect is designing a web application where users upload high-resolution images. These images are frequently accessed for 30 days, then rarely accessed. The architect wants the most cost-effective storage that maintains millisecond access. Which storage class strategy is best?

S3 Intelligent-Tiering
Lifecycle rule to move to S3 Glacier Flexible Retrieval
S3 Standard only
Lifecycle rule to move to S3 One Zone-IA after 30 days
View Explanation
✓ Correct Answer: S3 Intelligent-TieringExplanation:S3 Intelligent-Tiering automatically moves data between tiers based on access patterns without performance impact or retrieval fees.
25

A global application serves static assets from S3. Users in Europe report slow download speeds compared to users in the US. What is the most effective architectural change to improve performance globally?

Integrate S3 with Amazon CloudFront
Enable S3 Cross-Region Replication to European regions
Enable S3 Transfer Acceleration
Use a larger S3 bucket size
View Explanation
✓ Correct Answer: Integrate S3 with Amazon CloudFrontExplanation:CloudFront is a Content Delivery Network (CDN) that caches content at edge locations close to users worldwide.
26

An architect needs to track every single API request made to any object in an S3 bucket for security auditing. Which S3 feature provides this level of detail?

S3 Server Access Logs or CloudTrail Data Events
S3 Storage Lens
CloudTrail Management Events only
S3 Inventory
View Explanation
✓ Correct Answer: S3 Server Access Logs or CloudTrail Data EventsExplanation:While Management Events track bucket-level changes, Data Events (or Server Access Logs) are needed for object-level visibility.
27

To protect against accidental deletion of objects in an S3 bucket, which combination of features should be enabled?

S3 Versioning and MFA Delete
S3 Object Lock and Bucket Policies
Access Control Lists (ACLs) and Encryption
S3 Lifecycle and Cross-Region Replication
View Explanation
✓ Correct Answer: S3 Versioning and MFA DeleteExplanation:Versioning keeps multiple copies of an object, and MFA Delete adds an extra layer of security for permanent deletions.
28

A solutions architect is migrating a legacy application that requires a hierarchical file system and high-throughput access for a cluster of EC2 instances. Which storage service should be used if the application cannot be refactored for object storage?

Amazon Elastic File System (EFS)
Amazon S3 with S3 File Gateway
Amazon EBS Provisioned IOPS
Amazon FSx for Lustre
View Explanation
✓ Correct Answer: Amazon Elastic File System (EFS)Explanation:EFS provides a scalable, POSIX-compliant file system that can be mounted by multiple EC2 instances simultaneously.
29

What is the primary benefit of using S3 Multi-Region Access Points?

It provides a single global endpoint that routes traffic to the closest S3 bucket with the lowest latency
It allows a single bucket to span across multiple regions
It increases the maximum object size in S3
It automatically encrypts data in multiple regions
View Explanation
✓ Correct Answer: It provides a single global endpoint that routes traffic to the closest S3 bucket with the lowest latencyExplanation:Multi-Region Access Points simplify global data access by routing requests automatically based on network proximity.
30

A data lake on S3 contains thousands of Parquet files. An architect needs to run a simple SQL query to extract a subset of data from these files without loading them into a database. Which service/feature is most efficient?

S3 Select or Amazon Athena
Amazon Redshift Spectrum
AWS Glue Elastic Views
S3 Batch Operations
View Explanation
✓ Correct Answer: S3 Select or Amazon AthenaExplanation:Athena is a serverless interactive query service that allows you to analyze data directly in S3 using SQL.
31

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
32

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
33

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
34

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
35

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
36

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
37

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
38

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
39

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
40

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
41

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
42

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
43

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
44

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
45

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon RDS
Amazon EBS
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
46

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
47

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
48

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
Share full administrative credentials
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
49

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
50

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
51

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
52

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
53

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
54

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
55

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
56

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
57

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon RDS
Amazon EC2 running a web server
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
58

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
59

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
60

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
61

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
62

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
63

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
64

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
65

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
66

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Use Amazon EC2 instance profiles
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
67

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
68

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
69

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
70

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
71

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
72

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
73

An organization is migrating a 2 PB data archive from an on-premises Hadoop cluster to Amazon S3. They have a 1 Gbps internet connection and a 100 Mbps direct link. Bandwidth is limited and they need the migration to finish within 4 weeks. What is the most feasible way to migrate ?

AWS Snowball Edge clusters
AWS DataSync over the DX link
Multipart upload using the AWS CLI over the internet
AWS Snowmobile
View Explanation
✓ Correct Answer: AWS Snowball Edge clustersExplanation:Snowball Edge is the standard physical data transfer device for multi-petabyte migrations where bandwidth is a bottleneck. Snowmobile is for exabyte scale.
74

A fintech startup wants to ensure that no developer can accidentally grant public access to S3 buckets containing sensitive customer data. They want an automated way to detect AND automatically remediate this at the organization level. How should they implement this?

Enable S3 Block Public Access at the Account level and use AWS Config with Auto-remediation
Apply a Bucket Policy manually to every bucket
Use Amazon Macie to find public buckets
SCPs to block the 'PutBucketPolicy' action
View Explanation
✓ Correct Answer: Enable S3 Block Public Access at the Account level and use AWS Config with Auto-remediationExplanation:S3 Block Public Access is a powerful account-level switch. AWS Config provides the detection and auto-remediation (via Systems Manager Automation) to revert any manual changes.
75

Your application uses Amazon S3 to store millions of small objects. You find that the costs for 'GET' and 'PUT' requests are higher than the storage costs. What is the most effective way to reduce the overall request costs for these small objects?

Batch or bundle small objects into larger archives (like ZIP or Parquet) before uploading
Use S3 Intelligent-Tiering
Use S3 One Zone-IA
Encrypt the objects with AWS KMS
View Explanation
✓ Correct Answer: Batch or bundle small objects into larger archives (like ZIP or Parquet) before uploadingExplanation:S3 charges per request. Bundling many small files into fewer large files significantly reduces the number of PUT/GET operations, lowering request costs.
76

A large biotech firm needs to move 500 TB of genomic data to S3. They want to ensure they don't exceed their 1 Gbps Direct Connect limit during business hours but want the transfer to be as fast as possible at night. Which tool integrates this scheduling and bandwidth control natively?

AWS DataSync
AWS CLI s3 sync
S3 Transfer Acceleration
Snowball Edge
View Explanation
✓ Correct Answer: AWS DataSyncExplanation:AWS DataSync allows for bandwidth throttling and automated task scheduling, making it ideal for managing large-scale data transfers over shared links.
77

A team of data analysts is using Amazon Athena to query data in S3. You notice that query costs are rising rapidly because they are performing 'full scans' of large CSV files. What is the most effective architectural change to reduce query costs and improve performance?

Convert the data to a columnar format like Parquet or ORC and partition it by date
Increase the Athena concurrency limit
Use Amazon S3 Intelligent-Tiering
Enable Athena query result encryption
View Explanation
✓ Correct Answer: Convert the data to a columnar format like Parquet or ORC and partition it by dateExplanation:Columnar formats like Parquet allow Athena to only read the specific columns required for a query. Partitioning allows it to skip entire folders of data that don't match the query criteria.
78

An organization wants to optimize their S3 storage costs for a bucket with millions of objects where the access patterns are unknown and constantly changing. They want a solution that automatically moves data between frequent and infrequent access tiers without any performance impact or operational overhead. Which S3 storage class is best?

S3 Intelligent-Tiering
S3 Standard-IA
S3 Glacier Instant Retrieval
S3 One Zone-IA
View Explanation
✓ Correct Answer: S3 Intelligent-TieringExplanation:S3 Intelligent-Tiering is the only storage class that automatically moves data between tiers based on changing access patterns without retrieval fees or lifecycle management overhead.
79

A financial services client requires their data in S3 to be redundant across two different geographical regions. They also need to ensure that any object deleted in the source bucket is NOT deleted in the destination bucket to protect against accidental mass deletion. How should they configure S3 Replication?

Enable Cross-Region Replication (CRR) and disable 'Delete Marker Replication'
Enable S3 Versioning only
Use AWS DataSync
Enable CRR with 'Batch Replication' only
View Explanation
✓ Correct Answer: Enable Cross-Region Replication (CRR) and disable 'Delete Marker Replication'Explanation:By disabling Delete Marker Replication, a delete request in the source project won't propagate to the destination, providing a safety net against accidental or malicious deletions.
80

A manufacturing company needs to store petabytes of sensor data. The data is rarely accessed but must be available within minutes if a request is made. Which S3 storage class provides the best balance of cost and retrieval speed for this use case?

S3 Glacier Instant Retrieval
S3 Glacier Flexible Retrieval
S3 Glacier Deep Archive
S3 Standard-IA
View Explanation
✓ Correct Answer: S3 Glacier Instant RetrievalExplanation:Glacier Instant Retrieval is designed for long-lived data that is rarely accessed but needs millisecond retrieval when requested.
81

What is the primary benefit of 'Amazon S3 Storage Lens' for a large multi-account organization?

It provides organization-wide visibility into S3 usage and activity trends to identify cost-saving opportunities and security risks
It makes S3 faster
It encrypts S3 data automatically
It manages S3 backups
View Explanation
✓ Correct Answer: It provides organization-wide visibility into S3 usage and activity trends to identify cost-saving opportunities and security risksExplanation:Storage Lens provides a centralized dashboard for analyzing S3 metrics across all accounts in an organization.
82

Which AWS service provides an automated way to discover, classify, and protect sensitive data (like PII) stored in Amazon S3 buckets across an entire organization?

Amazon Macie
Amazon GuardDuty
AWS Shield
AWS Inspector
View Explanation
✓ Correct Answer: Amazon MacieExplanation:Amazon Macie uses machine learning and pattern matching to identify sensitive data and provides visibility into how it is being accessed or moved.
83

What is the primary benefit of 'AWS Lake Formation' for an organization building a data lake?

It simplifies the process of setting up, securing, and managing a data lake by providing a centralized security and permission model across S3, Glue, and Athena
It makes S3 faster
It is a cheaper alternative to S3
It automatically translates SQL queries into Python
View Explanation
✓ Correct Answer: It simplifies the process of setting up, securing, and managing a data lake by providing a centralized security and permission model across S3, Glue, and AthenaExplanation:Lake Formation adds a governance layer on top of S3, allowing for fine-grained (row/column level) access control that is difficult to manage with raw IAM policies alone.
84

A healthcare provider must ensure that no Personal Health Information (PHI) is accidentally uploaded to their public-facing S3 buckets. They want a solution that automatically scans every new object and alerts if sensitive data is found. Which AWS service provides this functionality?

Amazon Macie
Amazon GuardDuty
AWS Security Hub
Amazon Inspector
View Explanation
✓ Correct Answer: Amazon MacieExplanation:Macie uses ML to discover and classify sensitive data in S3 and can be integrated with EventBridge for automated alerting and remediation.
85

An organization wants to move their complex ETL pipelines to AWS. They want a serverless service that can automatically handle data cataloging, schema discovery, and run Spark/Python jobs without managing servers. Which service should they choose?

AWS Glue
Amazon EMR
Amazon Redshift
AWS Lambda
View Explanation
✓ Correct Answer: AWS GlueExplanation:AWS Glue is a fully managed ETL service that includes a data catalog and a serverless Spark/Python execution engine.
86

A media company is seeing unexpected spikes in their AWS bill due to several large S3 buckets being accessed globally. They want to identify which specific IP addresses and user agents are making most of the S3 requests. What should they enable?

S3 Server Access Logging
AWS Config
S3 Inventory
CloudWatch Metrics only
View Explanation
✓ Correct Answer: S3 Server Access LoggingExplanation:Server Access Logs provide the detailed request-level data (IPs, user agents, request type) required for granular traffic analysis.
87

A media company is hosting their video library on Amazon S3. They want to provide a way for their mobile app users to securely download videos while ensuring that the links expire after 1 hour. What should they use?

S3 Signed URLs
Public S3 buckets
IAM roles for every user
S3 Object Versioning
View Explanation
✓ Correct Answer: S3 Signed URLsExplanation:Signed URLs provide time-limited, secure access to private S3 objects, making them ideal for mobile and web apps.
88

Your organization wants to ensure that all their critical S3 buckets have 'Object Lock' enabled to prevent any data from being deleted for 7 years due to compliance. Which mode of Object Lock provides the strongest protection, where even the ROOT user cannot delete the objects?

Compliance Mode
Governance Mode
Standard Mode
Glacier Lock Mode
View Explanation
✓ Correct Answer: Compliance ModeExplanation:In Compliance Mode, a protected object version cannot be overwritten or deleted by any user, including the root user in your AWS account. It ensures that data remains immutable during the retention period.
89

A media company is using Amazon S3 to store high-value videos. They want to ensure that if a region fails, their customers can still stream the videos from a secondary region with an RTO of zero. Which feature should they enable?

S3 Multi-Region Access Points with Cross-Region Replication
S3 Intelligent-Tiering
S3 Inventory
Route 53 CNAMEs only
View Explanation
✓ Correct Answer: S3 Multi-Region Access Points with Cross-Region ReplicationExplanation:Multi-Region Access Points provide a single global endpoint that automatically routes requests to the closest healthy replica in an S3 CRR setup.
90

You need to perform a one-time update to the 'Storage Class' of 500 million objects in an S3 bucket to transition them from Standard to Glacier Deep Archive. Which S3 feature is specifically designed to perform actions on a massive number of objects at scale?

S3 Batch Operations
S3 Lifecycle Management (configured for tomorrow)
Manual CLI script with 's3 cp'
S3 Inventory
View Explanation
✓ Correct Answer: S3 Batch OperationsExplanation:S3 Batch Operations allows you to perform large-scale data manipulation (copy, tag, restore from archive) by providing a list of objects (via Inventory or CSV).
91

An organization wants to analyze why their Amazon Athena queries are running slowly. They want to see exactly how much data was scanned for each query and identifying any 'full table scans' on large datasets. Where can they find this granular query performance data?

Athena Query History and CloudWatch Metrics (ProcessedBytes)
VPC Flow Logs
CloudWatch Logs
S3 Inventory
View Explanation
✓ Correct Answer: Athena Query History and CloudWatch Metrics (ProcessedBytes)Explanation:Athena provides per-query metrics in the console and via CloudWatch, which are essential for identifying inefficient queries that increase costs.
92

To protect against a large-scale Ransomware attack that modifies or deletes objects in your S3 buckets, which S3 feature should you use to ensure you can recover to a specific point in time before the attack occurred?

S3 Versioning and S3 Object Lock
S3 Replication only
Daily S3 backups
S3 Inventory
View Explanation
✓ Correct Answer: S3 Versioning and S3 Object LockExplanation:Versioning allows you to restore previous object versions. Object Lock prevents any modification or deletion, even if the user has full IAM permissions.
93

An organization wants to analyze their organization-wide S3 usage to identify 'Shadow IT' buckets and ensure that all buckets comply with their encryption and tagging policies. Which tool provides this centralized visibility?

Amazon S3 Storage Lens (with organization-level dashboard)
S3 Inventory
AWS Config
Amazon Macie
View Explanation
✓ Correct Answer: Amazon S3 Storage Lens (with organization-level dashboard)Explanation:Storage Lens provides an organization-wide view for analyzing S3 usage and activity trends, with recommendations for cost and security optimization.
94

To protect against a ransomware attack that deletes all objects in an S3 bucket, which feature should you enable that ensures even the root user cannot delete objects until a specified retention period ends?

S3 Object Lock (Compliance Mode)
S3 Versioning only
Multi-Factor Authentication (MFA) Delete
S3 Replication
View Explanation
✓ Correct Answer: S3 Object Lock (Compliance Mode)Explanation:Compliance Mode is the strongest protection, making data immutable even for administrative accounts.
95

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
96

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
97

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
98

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
99

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
100

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
101

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
102

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
103

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
104

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
105

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
106

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
Share full administrative credentials
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
107

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EBS
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
108

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
109

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon EBS
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
110

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
111

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
112

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
113

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
114

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
115

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
116

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
117

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon EBS
Amazon RDS
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
118

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
119

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
120

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
121

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
122

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Use Amazon EC2 instance profiles
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
123

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EBS
Amazon EC2 running a web server
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
124

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
125

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
126

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
127

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
128

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
129

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon S3 configured for static website hosting
Amazon EC2 running a web server
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
130

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
131

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EBS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
132

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Share full administrative credentials
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
133

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon EBS
Amazon S3 configured for static website hosting
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
134

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
135

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
136

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
137

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
138

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
139

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
140

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
141

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon RDS
Amazon EBS
Amazon EC2 running a web server
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
142

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Use Amazon EC2 instance profiles
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
143

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon EBS
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
144

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
Share full administrative credentials
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
145

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EC2 running a web server
Amazon S3 configured for static website hosting
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
146

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Share full administrative credentials
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
147

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon EBS
Amazon RDS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
148

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
Share full administrative credentials
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
149

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
150

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Use Amazon EC2 instance profiles
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Create long-term access keys for each developer
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
151

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon S3 configured for static website hosting
Amazon EC2 running a web server
Amazon RDS
Amazon EBS
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
152

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Create long-term access keys for each developer
Use Amazon EC2 instance profiles
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
153

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon RDS
Amazon EBS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
154

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Share full administrative credentials
Create long-term access keys for each developer
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
Use Amazon EC2 instance profiles
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.
155

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Amazon EBS
Amazon RDS
Amazon EC2 running a web server
Amazon S3 configured for static website hosting
View Explanation
✓ Correct Answer: Amazon S3 configured for static website hostingExplanation:Amazon S3 supports static website hosting directly, offering high durability and low cost compared to running a VM.
156

You need to grant developers read-only access to Amazon S3 buckets without giving them access to other services. What's the best approach using AWS IAM?

Use Amazon EC2 instance profiles
Create long-term access keys for each developer
Share full administrative credentials
Create an AWS IAM policy with Amazon S3 read permissions and attach it to a group
View Explanation
✓ Correct Answer: Create an AWS IAM policy with Amazon S3 read permissions and attach it to a groupExplanation:AWS IAM allows you to define granular permissions. Attaching policies to groups follows the principle of least privilege and simplifies management.