Task 4: Deploy Code by Using AWS Continuous Integration and Continuous Delivery (CI/CD) Services DVA-C02 Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A company runs a legacy application on EC2 instances that were originally configured manually. They want to start using AWS CodeDeploy to manage deployments across dev, test, and prod environments. The instances are already running and have the CodeDeploy agent installed. The team wants to minimize changes to the existing infrastructure. What is the most efficient way to set up CodeDeploy for these environments?

   • ACreate separate deployment groups for each environment, tagging instances appropriately, and use deployment configurations to control the rollout.
   • BCreate a new Auto Scaling group for each environment and re-launch the instances.
   • CUse AWS OpsWorks to manage the instances and then integrate with CodeDeploy.
   • DCreate a single deployment group that includes all instances across dev, test, and prod, and use deployment configurations to control the rollout.
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2. 2foundation · easy

   How does committing code to a repository automatically trigger a CI/CD pipeline in AWS?

   • ABy manually running the pipeline after each commit
   • BBy using AWS CloudFormation to detect changes in the repository
   • CBy using a webhook or event that triggers CodePipeline to start a pipeline execution
   • DBy scheduling a cron job to check for new commits
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4. 3application · medium

   A developer is deploying a new version of an application to an Elastic Beanstalk environment. The team wants to reduce risk by initially sending only 10% of the traffic to the new version and then gradually increasing it to 100% if no errors are detected. Which deployment policy should the developer configure in Elastic Beanstalk?

   • AAll at once
   • BBlue/green
   • CCanary
   • DRolling
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5. 4foundation · easy

   In AWS CodeDeploy, how do you configure a blue/green deployment for an EC2 Auto Scaling group?

   • ACreate a new Auto Scaling group and manually update the load balancer
   • BUse the AWS Management Console to switch the Auto Scaling group's AMI
   • CUse a rolling deployment with a small batch size
   • DSpecify the deployment style as blue/green and provide the settings for the replacement environment
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6. 5application · medium

   A developer has an API Gateway REST API with a Lambda integration. The Lambda function needs to know whether it is running in the 'dev' or 'prod' environment to set logging levels. The developer wants to pass this information dynamically without redeploying the function. What is the most appropriate way to pass this environment information?

   • AHardcode the environment name in the Lambda function and create a separate function for each environment.
   • BUse a Lambda environment variable and update it manually whenever the API stage changes.
   • CUse an API Gateway stage variable and reference it in the Lambda function's code via the event object.
   • DQuery the API Gateway management API from within the Lambda function to determine the stage.
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