PCD Question 92

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose D1

  A/B Testing with Traffic Mirroring: This approach allows you to send a portion of your live production traffic to both the new and existing versions of your application simultaneously. This provides a realistic test environment with real-world load, allowing you to gather performance metrics for both versions side-by-side. Traffic mirroring ensures that the new version is tested under the same conditions as the existing version, providing a more accurate comparison.

• 1

  A. Canary Deployment: While canary deployment is useful for gradual rollouts and testing, it primarily focuses on testing the new version in a limited environment. It doesn't necessarily provide a full production load test. B. Blue/Green Deployment: Blue/green deployment involves switching traffic between two identical environments. While it allows for zero downtime deployments, it doesn't provide a way to test both versions simultaneously with live traffic. C. Rolling Updates Deployment: Rolling updates gradually replace instances with new versions. This approach doesn't offer a way to test both versions with live traffic simultaneously.

• Chose D2

  Canary will only redirect a small portion of the traffic, while A/B with mirroring will test the new version in full load