Correct Answer: Choose a partition key with high cardinality (many unique values) like a UUID
High cardinality keys ensure data is evenly distributed across partitions, preventing throttling of specific keys....
Correct Answer
Choose a partition key with high cardinality (many unique values) like a UUID
Why This Answer Is Correct
High cardinality keys ensure data is evenly distributed across partitions, preventing throttling of specific keys.
This question evaluates your knowledge of Amazon DynamoDB — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding Amazon DynamoDB is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.
Your application generates millions of clickstream events per second. You need a service to ingest and buffer this data in real-time before processing it. Which service fits this need?
An architect is designing a globally distributed mobile application. Users in different regions must be able to read and write to the same DynamoDB table with low latency. Which feature should be used?
An application is experiencing 'ProvisionedThroughputExceededException' during peak hours on a DynamoDB table. The architect needs a solution that provides microsecond read latency and reduces the load on the table. Which service is best?
What is the primary difference between a Local Secondary Index (LSI) and a Global Secondary Index (GSI) in DynamoDB?
A company wants to automatically delete old items in a DynamoDB table after 30 days to save costs. Which feature allows this without writing custom deletion code?