Domain 3.2: Compute Performance — AWS SAA-C03 Practice Question 46

How to approach this question

Identify the need to limit a specific Lambda function from consuming all account concurrency. Reserved Concurrency does this.

Full Answer

B.Configure Reserved Concurrency for the image processing Lambda function.✓ Correct

Reserved concurrency guarantees a specific number of concurrent executions for a function. Crucially, it also acts as a maximum limit. By setting reserved concurrency, you ensure the function cannot scale beyond that limit and consume the unreserved concurrency pool needed by other functions.

Common mistakes

Confusing Provisioned Concurrency (for cold starts) with Reserved Concurrency (for limits/guarantees).

An application uses AWS Lambda functions to process images uploaded to S3. During marketing campaigns, thousands of images are uploaded simultaneously, causing the Lambda functions to hit the account concurrency limit and throttle other critical Lambda functions. How can this be prevented?

How to approach this question

Full Answer

Common mistakes

Practice the full AWS SAA-C03 Practice Exam 3

More questions from this exam