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.
Performance optimization of AWS Lambda functions involves adjusting parameters such as __________ to achieve the desired balance of resources and cost.
- Billing address
- Encryption settings
- Memory allocation
- Timeout duration
Adjusting the memory allocation for AWS Lambda functions can significantly impact performance and cost, as it determines the amount of CPU and other resources allocated to the function.
Scenario: You're developing a serverless application where Lambda functions need access to resources in an Amazon VPC. How would you configure the Lambda functions to achieve this?
- Configure the Lambda function to run inside a VPC
- Enable AWS Direct Connect
- Grant IAM roles to Lambda functions
- Use VPC endpoints
By configuring the Lambda function to run inside a VPC, you can provide it with access to resources within that VPC, such as EC2 instances or RDS databases.
Scenario: Your team needs to deploy a Lambda function that processes data uploaded to an S3 bucket. What steps would you take to ensure the Lambda function has the necessary permissions?
- Attach an S3 bucket policy to the Lambda function
- Configure S3 ACLs
- Create an IAM role with permissions to access the S3 bucket
- Use AWS Security Groups
By creating an IAM role with the necessary permissions to access the specified S3 bucket, you can assign this role to the Lambda function, ensuring it has the required permissions.
What are the considerations for managing versioning of deployment packages in AWS Lambda?
- Cost optimization
- Dependency management
- Rollback strategy
- Security measures
Versioning deployment packages in AWS Lambda requires considering dependencies to ensure compatibility and consistency across versions.
How can you automate the deployment process of AWS Lambda functions and their packages?
- AWS CodePipeline
- AWS Console only
- Email notifications
- Manual uploads
AWS CodePipeline allows you to automate the build, test, and deployment process of AWS Lambda functions and their associated deployment packages.
When creating a deployment package for AWS Lambda, it's essential to include the __________ file to specify the function's entry point.
- config
- handler
- index
- package
The handler file is crucial in an AWS Lambda deployment package as it specifies the entry point for the function.
AWS Lambda deployment packages should adhere to size limits to ensure __________ performance and reduce cold start times.
- dynamic
- maximal
- minimal
- optimal
Adhering to size limits ensures optimal performance by reducing the time it takes to load and execute the function, especially during cold starts.