Task 4: Deploy Code by Using AWS Continuous Integration and Continuous Delivery (CI/CD) Services DVA-C02 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   A developer needs to change the memory size of a Lambda function that was deployed using AWS SAM. What is the correct way to update the function?

   • ACreate a new Lambda function with the desired memory size and update the API Gateway endpoint
   • BRun 'sam build' to apply the change without modifying the template
   • CUse the AWS Management Console to change the memory size, and the change will automatically update the SAM template
   • DEdit the SAM template to change the MemorySize property, then run 'sam deploy'
   Reveal Solution Discussion Select an answer first
2. 27foundation · easy

   Which AWS service is commonly used to build and test code as part of a CI/CD pipeline?

   • AAWS Elastic Beanstalk
   • BAWS CodeBuild
   • CAWS CodeDeploy
   • DAWS CodeCommit
   Reveal Solution Discussion Select an answer first
4. 28expert · hard

   A team manages infrastructure with AWS CloudFormation. A recent stack update introduced a misconfigured resource that is causing errors in production. The team wants to revert the stack to its previous known-good state. The previous stack template and parameter values are available. What is the most reliable way to perform the rollback?

   • AUpdate the stack by deploying the previous template and parameter values using 'aws cloudformation update-stack'.
   • BUse the CloudFormation console to roll back to the previous stack update.
   • CDelete the stack and recreate it with the previous template.
   • DUse AWS CodeDeploy to roll back the CloudFormation stack automatically.
   Reveal Solution Discussion Select an answer first
5. 29application · medium

   A team is deploying a critical update to a production application running on EC2 instances managed by AWS CodeDeploy. The application must remain available throughout the deployment, and the team wants to minimize the risk of a faulty release affecting all users. They also need to be able to quickly revert if something goes wrong. Which deployment strategy should they choose?

   • AAll-at-once deployment, because it is the fastest and simplest to configure.
   • BRolling deployment, which updates instances in batches but does not provide an easy rollback mechanism.
   • CBlue/green deployment, which shifts traffic to a new environment and allows instant rollback by switching back.
   • DCanary deployment, which sends a small percentage of traffic to the new version and gradually increases it.
   Reveal Solution Discussion Select an answer first
6. 30foundation · easy

   Which Elastic Beanstalk deployment policy allows you to deploy the new version to all instances at once, with a brief downtime?

   • ARolling
   • BAll at once
   • CCanary
   • DBlue/green
   Reveal Solution Discussion Select an answer first