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Key Design Consideration for Microservices on Google Cloud
Understand a critical design decision for deploying microservices in Google Cloud. Prepare effectively for the GCP-ACE exam.
Your organization plans to implement a microservices architecture on Google Cloud. What is an important design consideration when planning the deployment of microservices?
A. Using a single-instance Compute Engine VM for all microservices.
B. Ensuring each microservice is independently deployable.
C. Centralizing all microservices in a single Cloud Function.
D. Limiting the use of Google Cloud services to reduce complexity.
Think before you scroll
This question tests your understanding of microservices architecture principles. Consider the implications of each option on deployment flexibility and scalability, two core tenets of microservices.
The answer
The correct answer is B. Ensuring each microservice is independently deployable. This approach maximizes flexibility and scalability, allowing teams to deploy, scale, or update services without affecting others.
Why the other options lose
A. Using a single-instance Compute Engine VM for all microservices. This option contradicts the microservices principle of service isolation. Deploying all services on a single VM creates a single point of failure and limits independent scaling.
C. Centralizing all microservices in a single Cloud Function. This option undermines the independent deployability of microservices. Centralization can lead to bottlenecks and complicates the architecture, moving away from the microservices model.
D. Limiting the use of Google Cloud services to reduce complexity. This option suggests reducing potential benefits from the cloud. Effective microservices often leverage multiple services for scaling, resilience, and functionality. Limiting choices can hinder the architecture's effectiveness.
The concept behind it
The key principle here is independent deployability. Each microservice should operate in isolation, allowing developers to manage and scale them independently. This flexibility is essential for maintaining a responsive and scalable architecture.
Exam trap to remember
Remember: Independent deployability is non-negotiable in microservices architecture. Always assess options based on their impact on service isolation and deployment flexibility.