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Answer: Perform a blue/green deployment, and test your new application after the deployment is. complete.
The correct answer is **C. Blue/green deployment**. Blue/green deployments involve maintaining two separate environments (blue for the current version and green for the new version). Once the green environment is fully deployed and tested, traffic is switched to it. If issues arise, rolling back is instantaneous by redirecting traffic back to the blue environment. This contrasts with rolling deployments (A), which incrementally replace pods and require a slower rollback process. Canary deployments (D) allow gradual traffic shifting but are optimized for testing, not instant rollback. A/B testing (B) focuses on user segmentation for feature validation, not deployment strategies. Blue/green ensures the previous version remains operational, enabling immediate rollback if needed.
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Which deployment strategy in Google Kubernetes Engine allows instant rollback to a previous version when releasing a new version of an application?
A
Perform a rolling deployment, and test your new application after the deployment is complete.
B
Perform A/B testing, and test your application periodically after the new tests are implemented.
C
Perform a blue/green deployment, and test your new application after the deployment is. complete.
D
Perform a canary deployment, and test your new application periodically after the new version is deployed.