What considerations should be made for integrating AWS Lambda functions with API Gateway?
- Authentication and authorization
- Choosing a database service
- Hardware requirements
- Network bandwidth limitations
Securely integrating AWS Lambda functions with API Gateway involves implementing authentication and authorization mechanisms to control access to APIs and functions.
How can you optimize AWS Lambda functions for better performance and cost efficiency?
- Implementing code optimizations
- Increasing memory allocation
- Running functions continuously
- Using larger instance types
Optimizing code by minimizing execution time, reducing unnecessary dependencies, and implementing best practices can improve AWS Lambda function performance and reduce costs by reducing the time and resources required for execution.
When creating AWS Lambda functions, deployment packages typically consist of the function's code and its __________.
- Configuration
- Dependencies
- Documentation
- Permissions
Deployment packages for AWS Lambda functions typically consist of the function's code and its dependencies or required libraries.
Environment variables in AWS Lambda can be utilized to configure settings such as __________.
- API endpoints
- Billing details
- Code syntax
- Encryption keys
Environment variables in AWS Lambda can be utilized to configure settings such as API endpoints, allowing for flexibility in the function's behavior.
To ensure security and access control, AWS Lambda functions are associated with __________ that define their permissions.
- API keys
- IAM roles
- SSH keys
- SSL certificates
AWS Lambda functions are associated with IAM roles that define their permissions, ensuring security and access control based on defined policies.
AWS Lambda functions can be tested locally using tools such as __________.
- AWS SAM (Serverless Application Model)
- Docker
- JIRA
- Postman
AWS SAM (Serverless Application Model) is a framework for building serverless applications and simplifies the process of locally testing AWS Lambda functions.
Integration with API Gateway allows AWS Lambda functions to be exposed as __________ endpoints.
- RESTful
- SOAP
- WebSocket
- gRPC
API Gateway enables you to create RESTful APIs, and AWS Lambda functions can be integrated with API Gateway to serve as endpoints for these APIs.
The __________ feature of AWS Lambda allows you to reuse common code across multiple functions, reducing duplication in deployment packages.
- Lambda Events
- Lambda Functions
- Lambda Layers
- Lambda Triggers
Lambda Layers enable you to centrally manage common code or dependencies across multiple Lambda functions, reducing the size of deployment packages and minimizing duplication.
In AWS Lambda, you can leverage __________ to create layers containing shared libraries, custom runtimes, or other dependencies.
- AWS CLI (Command Line Interface)
- AWS Lambda Console
- AWS SAM (Serverless Application Model)
- AWS SDK (Software Development Kit)
AWS SAM (Serverless Application Model)
Scenario: You're tasked with optimizing the performance of an existing Lambda function that interacts with a DynamoDB table. What strategies would you employ to improve its efficiency?
- Batch multiple DynamoDB operations
- Enable DynamoDB Accelerator (DAX)
- Implement DynamoDB Streams
- Increase the provisioned concurrency
DynamoDB Accelerator (DAX) is an in-memory caching service that can significantly improve the read performance of DynamoDB tables accessed by Lambda functions.