Correct Answer: Reserved Concurrency
Reserved concurrency guarantees the number of concurrent instances available for a function and also acts as a limit to prevent it from consuming all account-level concurrency or o...
Correct Answer
Reserved Concurrency
Why This Answer Is Correct
Reserved concurrency guarantees the number of concurrent instances available for a function and also acts as a limit to prevent it from consuming all account-level concurrency or overwhelming downstream resources.
This question evaluates your knowledge of AWS Lambda — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding AWS Lambda 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.
You are designing a serverless microservices architecture for a new startup. The application needs to handle unpredictable traffic spikes without managing any underlying infrastructure. Which compute service should you use?
An application requires lower latency for Lambda function starts after long periods of inactivity ('cold starts'). Which configuration is most appropriate for this use case?
A solutions architect needs to ensure that sensitive database credentials used by a Lambda function are not stored in plain text in the environment variables. What is the most secure AWS-native architectural pattern?
A Lambda function needs to process messages from an Amazon SQS queue. The architect wants to decrease the number of Lambda invocations to save costs. Which parameter should be adjusted?
A Lambda function residing in a VPC needs to access the internet to call a third-party API. How should the VPC be configured?