Managing Implementation and Ensuring Solution and Operations Reliability →hardMultiple SelectObjective-mapped
Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
A company is designing a highly available architecture for a web application using Google Cloud. They need to ensure that the application remains available even if an entire Google Cloud region experiences an outage. Which THREE components should they include in their architecture? (Choose THREE.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Cloud Spanner multi-region configuration
For multi-region high availability, use a global load balancer, deploy instances in multiple regions (e.g., via regional MIGs), and use a multi-region database like Cloud Spanner or cross-region replication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Cloud Spanner multi-region configuration
Why this is correct
Cloud Spanner multi-region automatically replicates data across regions and provides strong consistency and automatic failover.
- ✗
Cloud SQL with a cross-region read replica
Why it's wrong here
Cloud SQL cross-region replicas are for read scaling and require manual promotion for write availability.
- ✓
Global external HTTP(S) load balancer
Why this is correct
Global load balancer can route traffic to healthy backends in multiple regions.
- ✗
Cloud CDN
Why it's wrong here
Cloud CDN caches content at edge locations but does not provide compute or database failover across regions.
- ✓
Regional managed instance groups in multiple regions
Why this is correct
Regional MIGs distribute instances across zones within a region; deploying in multiple regions provides region failover.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Cross-Region Replication
Cross-Region Replication is the automated copying of data from a storage bucket in one geographic region to a bucket in a different geographic region for disaster recovery, compliance, or lower latency access.
Key term
Regional
Regional refers to a deployment strategy where cloud resources are distributed across multiple geographic areas to improve availability, reduce latency, and meet compliance requirements.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCA exam.