DVA-C02 · Question #143
A company has a front-end application that runs on four Amazon EC2 instances behind an Elastic Load Balancer (ELB) in a production environment that is provisioned by AWS Elastic Beanstalk. A…
The correct answer is A. Clone the production environment to a different platform version. Deploy the new application. A developer also needs to update to a new platform version and it's more likely a new major version of node.js. To update to the new major version there is only one method and it is a blue/green deployment by creating (cloning) a new environment with the latest platform…
Question
A company has a front-end application that runs on four Amazon EC2 instances behind an Elastic Load Balancer (ELB) in a production environment that is provisioned by AWS Elastic Beanstalk. A developer needs to deploy and test new application code while updating the Elastic Beanstalk platform from the current version to a newer version of Node.js. The solution must result in zero downtime for the application. Which solution meets these requirements?
Options
- AClone the production environment to a different platform version. Deploy the new application
- BDeploy the new application code in an all-at-once deployment to the existing EC2 instances. Test
- CPerform an immutable update to deploy the new application code to new EC2 instances. Serve
- DUse a rolling deployment for the new application code. Apply the code to a subset of EC2
How the community answered
(51 responses)- A75% (38)
- B4% (2)
- C16% (8)
- D6% (3)
Explanation
A developer also needs to update to a new platform version and it's more likely a new major version of node.js. To update to the new major version there is only one method and it is a blue/green deployment by creating (cloning) a new environment with the latest platform version. Then deploy a new app version to it. Test it, then swap the env URL without downtime. Not C: While an immutable update can ensure zero downtime during the deployment process, it doesn't account for updating the Elastic Beanstalk platform version.
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