AWS Lambda function logs can be analyzed using tools such as __________ to identify performance bottlenecks during testing.
- AWS CloudWatch
- AWS Elastic Beanstalk
- AWS Inspector
- AWS X-Ray
AWS CloudWatch provides log monitoring and analysis capabilities, allowing you to identify performance bottlenecks in AWS Lambda function logs during testing.
__________ testing assesses how AWS Lambda functions handle sudden spikes in traffic or increased workload.
- Functional
- Integration
- Load
- Stress
Load testing assesses how AWS Lambda functions handle sudden spikes in traffic or increased workload by subjecting them to varying levels of demand.
It's important to perform __________ testing to ensure AWS Lambda functions interact correctly with other AWS services.
- Acceptance
- Integration
- Regression
- Unit
Integration testing verifies that AWS Lambda functions interact correctly with other AWS services, ensuring seamless integration and functionality.
Scenario: You are testing an AWS Lambda function that processes data from Amazon S3. How would you simulate different S3 event triggers to ensure the function behaves correctly?
- Configure S3 event notifications
- Use AWS CloudWatch Events
- Use the AWS Management Console
- Utilize AWS SDKs
Using the AWS Management Console allows you to manually trigger AWS Lambda functions and simulate different S3 event triggers for testing purposes.
How can you create a custom validator to validate a specific field in a Spring Boot application?
- Implement the @CustomValidator annotation and apply it to the field.
- Extend the Validator interface and implement the validate method.
- Use the @Valid annotation with custom validation logic directly in the field getter.
- Spring Boot does not support custom field-level validation.
To create a custom validator in Spring Boot, you should extend the Validator interface and implement the validate method. This allows you to define custom validation logic for specific fields in your application. Options 1 and 3 are not correct; Spring Boot does not have an @CustomValidator annotation for field-level validation, and the @Valid annotation is typically used at the method level, not for field-level validation. Option 4 is incorrect as it's not a true statement.
Scenario: Your team is conducting performance testing on AWS Lambda functions and needs to analyze resource utilization during testing. Which AWS service can provide insights into resource consumption?
- AWS CloudTrail
- AWS CloudWatch
- AWS Trusted Advisor
- AWS X-Ray
AWS X-Ray provides insights into resource consumption, performance bottlenecks, and tracing for AWS Lambda functions, aiding in performance testing and analysis.
What role does API Gateway play in the AWS Lambda ecosystem?
- Handle authentication for Lambda functions
- Manage database connections
- Monitor Lambda function performance
- Serve as a front-end for Lambda functions
API Gateway acts as a front-end for AWS Lambda functions, enabling clients to interact with the functions via HTTP endpoints.
How does API Gateway communicate with AWS Lambda functions?
- Via HTTP requests
- Via SSH tunnels
- Via TCP/IP sockets
- Via WebSocket connections
API Gateway communicates with AWS Lambda functions via HTTP requests, forwarding requests from clients to the corresponding Lambda functions.
To enable global method security in Spring Security, the _____ attribute should be set to true in the @EnableGlobalMethodSecurity annotation.
- jsr250Enabled
- prePostEnabled
- roleHierarchyEnabled
- securedEnabled
To enable global method security in Spring Security, you should set the prePostEnabled attribute to true in the @EnableGlobalMethodSecurity annotation. This enables the use of @PreAuthorize and @PostAuthorize annotations for method-level security.
Which annotation is mainly used to handle HTTP GET requests in a Spring Boot application?
- @GetMapping
- @RequestMapping
- @RequestMethod.GET
- @HttpHandler.GET
The @GetMapping annotation is mainly used to handle HTTP GET requests in a Spring Boot application. It is a specialized annotation that maps HTTP GET requests to specific controller methods. While @RequestMapping is a more generic annotation used for various HTTP methods, @GetMapping specifically targets GET requests, making the code more readable and explicit. The other options are not valid Spring annotations.