CompTIA Cloud+ (CV0-003) — Question 138

A company has two identical environments (X and Y) running its core business application. As part of an upgrade, the X environment is patched/upgraded and tested while the Y environment is still serving the consumer workloads. Upon successful testing of the X environment, all workload is sent to this environment, and the Y environment is then upgraded before both environments start to manage the workloads. Which of the following upgrade methods is being used?

Answer options

Correct answer: D

Explanation

The blue-green upgrade method is exemplified here, as it allows for one environment (X) to be fully upgraded and tested while the other (Y) maintains service. Once the new version is verified, traffic is switched to the upgraded environment, minimizing downtime. The other options do not fit this scenario, as active-passive refers to a failover configuration, canary is a gradual rollout, and development/production does not describe an upgrade method.