Task 1: Prepare Application Artifacts to Be Deployed to AWS DVA-C02 Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A developer is packaging a Java application for deployment to AWS Lambda. The application uses several third-party libraries that are not included in the Java runtime. The developer wants to ensure that all dependencies are included in the deployment package. Which packaging method should the developer use?

   • AUse a ZIP file that contains the JAR and a lib folder with the dependency JARs.
   • BUpload the JAR file and place the dependencies in a separate folder in the deployment package.
   • CCreate a shaded JAR that includes all dependencies.
   • DUse Maven to copy dependencies to a 'target' folder and upload that folder as the deployment package.
   Reveal Solution Discussion Select an answer first
2. 22expert · hard

   A developer is packaging a Python application for deployment to AWS Lambda. The application uses the 'requests' library, which is not included in the Lambda runtime. The developer wants to minimize the deployment package size while ensuring the library is available. Which approach should the developer use?

   • AUse the AWS SDK for Python (boto3) to make HTTP requests instead of 'requests'.
   • BUse a Lambda runtime that includes the 'requests' library.
   • CInclude the 'requests' library in the deployment package by installing it with pip.
   • DUse a Lambda layer that contains the 'requests' library.
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   In an AWS Lambda function, how can a developer define an environment variable that the application code can read at runtime?

   • AHardcode the value in the source code and re-deploy the function whenever the value changes.
   • BUse the AWS Systems Manager Parameter Store to store the value and reference it in the code, but this is not an environment variable.
   • CCreate a .env file in the same directory as the Lambda function code and upload it with the deployment package.
   • DSet the environment variable in the function's configuration using the AWS Management Console or AWS CLI.
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A company runs a fleet of Amazon EC2 instances that host a web application. The application reads a configuration file from the local filesystem at startup. The operations team wants to change a feature flag in production without restarting the instances or redeploying the application. Which AWS service should the developer integrate with the application to achieve this?

   • AAWS Secrets Manager
   • BAmazon S3
   • CAWS Systems Manager Parameter Store
   • DAWS AppConfig
   Reveal Solution Discussion Select an answer first
6. 25foundation · easy

   What is the primary benefit of using AWS AppConfig to deploy configuration changes?

   • AIt encrypts all configuration data at rest by default.
   • BIt allows you to deploy configuration changes gradually and roll back if issues occur.
   • CIt eliminates the need for environment variables in your application.
   • DIt automatically scales your application based on configuration changes.
   Reveal Solution Discussion Select an answer first