GCP Cloud Digital Leader Practice Question

Your organization plans to break a legacy, monolithic order-processing application into several containerized microservices before migrating it to Google Cloud. Executives want to know how this change supports long-term modernization goals such as faster innovation and reduced operational risk. Which key benefit of using containers and microservices should you emphasize?

All services will share the same runtime environment, eliminating version differences across the application.
No configuration changes will be required when moving workloads from on-premises virtual machines to cloud infrastructure.
Individual services can be updated and scaled independently, accelerating releases while reducing the impact of defects.
Containers provide built-in high availability, removing the need for separate orchestration or monitoring tools.

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Answer Description

Because each microservice is packaged in its own lightweight container, it can be built, tested, deployed, and scaled independently of the other services in the application. This loose coupling lets teams release updates or roll back changes to a single component without redeploying the entire system, shortening release cycles and limiting the blast radius of defects. The other statements are incorrect: containers do not force a single runtime; they still require orchestration for availability; and while containers improve portability, they do not guarantee that no configuration changes will ever be needed when moving environments.

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