Practice Test 2 | Google Cloud Certified Professional Cloud Architect | Dumps | Mock Test
You need to reduce the number of unplanned rollbacks of erroneous production deployments in your company’s web hosting platform. Improvement to the QA and Test processes accomplished an 80% reduction. Which additional two approaches can you take to further reduce the rollbacks? (Choose two)
A. Introduce a blue-green deployment model.
B. Fragment the monolithic platform into microservices.
C. Remove the QA environment. Start executing canary releases.
D. Remove the platform’s dependency on relational database systems.
E. Replace the platform’s relational database systems with a NoSQL database.
Correct Answer – A and B
A (Correct Answer) – The blue-green model allows for extensive testing of the application in the green environment before sending traffic to it. Typically, the two environments are identical otherwise which gives the highest level of testing assurance.
B (Correct Answer) – Microservices allows for smaller, more incremental rollouts of updates (each microservice can be updated individually) which will reduce the likelihood of an error in each rollout.
C is incorrect – Would remove a well proven step from the general release strategy, a canary release platform is not a replacement for QA, it should be additive.
D is incorrect – Doesn’t really help the rollout strategy, there is no inherent property of a relational database that makes it more subject to failed releases than any other type of data storage.
E is incorrect – Doesn’t really help either since NoSQL databases do not offer anything over relational databases that would help with release quality.
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