Try 5 free practice questions with instant feedback. See how ready you are.
Question 1
What is the maximum execution timeout for an AWS Lambda function?
Answer: 15 minutes (900 seconds). If a function needs to run longer, you must use a different compute service like ECS or EC2.
Question 2
What is the maximum amount of memory you can allocate to a single Lambda function?
Answer: 10,240 MB (10 GB). Memory allocation also proportionally increases the vCPU available to the function.
Question 3
What is a Lambda 'cold start' and when does it occur?
Answer: A cold start is the initialization delay that occurs when Lambda must provision a new execution environment for a function invocation, typically after a period of inactivity or when scaling out.
Question 4
What is the maximum unzipped deployment package size for a Lambda function?
Answer: 250 MB. For larger dependencies, you should use Lambda Layers or load assets from S3 at runtime.
Question 5
Which Lambda feature allows you to run code without packaging dependencies into the main deployment artifact, and can be shared across multiple functions?
Answer: Lambda Layers. A layer is a ZIP archive containing libraries or custom runtimes, and up to 5 layers can be attached to a single function.