Google Cloud Professional Cloud Architect — Question 105

You need to reduce the number of unplanned rollbacks of erroneous production deployments in your company's web hosting platform. Improvement to the QA/
Test processes accomplished an 80% reduction.
Which additional two approaches can you take to further reduce the rollbacks? (Choose two.)

Answer options

• A. Introduce a green-blue deployment model
• B. Replace the QA environment with canary releases
• C. Fragment the monolithic platform into microservices
• D. Reduce the platform's dependency on relational database systems
• E. Replace the platform's relational database systems with a NoSQL database

Correct answer: A, C

Explanation

Implementing a green-blue deployment model allows for safer releases by having two identical environments, which minimizes downtime and risk of failure. Fragmenting the monolithic platform into microservices enhances agility and scalability, making rollbacks more manageable. The other options either do not address rollback issues directly or may introduce more complexity without necessarily reducing rollbacks.