Questions
3 of 10
1How do you define and configure Lambda functions?
2How do you create a Lambda function in the AWS Console?
3What runtimes are supported by AWS Lambda?
4What is the default timeout for a Lambda function?
5What is the memory limit for Lambda functions?
6What is a Lambda function handler?
7What is the difference between environment variables and AWS Systems Manager (SSM) Parameter Store for Lambda configuration?
8How do you handle errors in Lambda functions?
9What are the main components of a Lambda function?
10What is a Lambda expression?
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03 / 10

What runtimes are supported by AWS Lambda?

AWS Lambda supports a variety of runtimes that allow developers to write functions in multiple programming languages. These runtimes are managed by AWS, meaning updates, patches, and environment management are handled for you. You can also bring your own runtime using custom runtime support.

Officially Supported AWS Lambda Runtimes (as of 2025)
  1. 1

    Node.js (v20, v18, v16)

  2. 2

    Python (v3.12, v3.11, v3.10, v3.9)

  3. 3

    Java (Corretto 21, 17, 11, 8)

  4. 4

    Go (v1.x)

  5. 5

    Ruby (v3.2, v2.7)

  6. 6

    C#/.NET (Core 6, Core 7, .NET 8)

  7. 7

    PowerShell (v7.2)

  8. 8

    Custom Runtime (via AWS Lambda Runtime API using Amazon Linux)

Sample Custom Runtime Bootstrap (bash)