CompTIA Cloud+ (CV0-002) — Question 64

A development team released a new version of an application and wants to deploy it to the cloud environment with a faster rollback and minimal downtime. Which of the following should the cloud administrator do to achieve this goal?

Answer options

• A. Use a rolling deployment to update all the servers in the PROD cloud environment with the new application. To switch to the previous version, repeat the process.
• B. Deploy the application to the PROD cloud environment and the previous version to QA. To switch to the previous version, promote the QA environment to PROD.
• C. Deploy the application to a subset of servers in the environment and route traffic to these servers. To switch to the previous version, change the route to the non-updated servers.
• D. Deploy the application to a staging environment and force a failover to this environment. To restore the previous version, create a backup and restore from the previous night's backup.

Correct answer: A

Explanation

Option A is correct because a rolling deployment allows for gradual updates across servers, enabling quick rollback if needed. Options B and D involve more complex procedures that can lead to increased downtime and are not as efficient for rapid rollbacks. Option C, while useful, does not provide a complete deployment strategy and could complicate traffic management.