8 Questions
What is the purpose of AWS Lambda?
Serverless computing
What are key features of AWS Lambda?
Pay-per-use pricing model
When to use Lambda? _________
Based on event triggers
What is the purpose of async/await in JavaScript?
To handle asynchronous operations and make the code more readable and maintainable.
Which AWS service can be used for deploying container images?
AWS SAM
Lambda functions written in Python can be packaged using .zip files.
True
AWS provides base images for Python for deploying Lambda functions using ____.
Layers
Match the following with the correct description:
Context = Information about the execution environment of a Lambda function Logging = Recording and monitoring of events and activities in a Lambda function Tracing = Tracking and visualizing the execution path of a Lambda function
Study Notes
AWS Lambda
- AWS Lambda is a serverless compute service that runs your code in response to events.
Logging
- Logging can be done using a logging library.
- Lambda advanced logging controls can be used with Python.
- Logs can be viewed in the Lambda console, CloudWatch console, or using the AWS CLI.
- Logs can be deleted.
Tools and Libraries
- Powertools for AWS Lambda (Python) can be used for structured logging and tracing.
- AWS SAM can be used for structured logging and tracing.
Testing
- Serverless applications can be tested.
Tracing
- Tracing can be done using Powertools for AWS Lambda (Python) and AWS SAM.
- X-Ray SDK can be used to instrument Python functions.
- Tracing can be activated with the Lambda console, Lambda API, or AWS CloudFormation.
- X-Ray tracing can be used in sample applications.
Building with Ruby
- Handler and runtime-included SDK versions can be used.
- Dependencies can be stored in a layer.
- ZIP deployment packages can be created with or without dependencies.
- Ruby layer can be created for dependencies.
Building with Java
- Handler can be used with Java 17 and 11 runtimes.
- Deployment packages can be built with Gradle or Maven.
- Java layer can be created for dependencies.
- AWS base images for Java can be used.
Lambda SnapStart
- SnapStart is a feature that allows Lambda functions to start faster.
- Supported features and limitations are available.
- Pricing and provisioned concurrency are important considerations.
- SnapStart can be activated.
Java Customization
- JAVA_TOOL_OPTIONS environment variable can be used.
- Context can be used in sample applications.
Logging with Java
- Logs can be created using Log4j2 and SLF4J.
- Advanced logging can be done using Powertools for AWS Lambda (Java) and AWS SAM.
- Logs can be viewed in the Lambda console, CloudWatch console, or using the AWS CLI.
- logs can be deleted.
Tracing with Java
- Tracing can be done using Powertools for AWS Lambda (Java) and AWS SAM.
- X-Ray SDK can be used to instrument Java functions.
- Tracing can be activated with the Lambda console, Lambda API, or AWS CloudFormation.
- X-Ray tracing can be used in sample applications.
Test your knowledge of AWS Lambda with this quiz based on the official developer guide. Covers topics related to AWS Lambda development, deployment, and management.
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