Google PCA Ensure solution and operations reliability Practice Question
This PCA practice question tests your understanding of ensure solution and operations reliability. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company runs a global e-commerce site on GKE. They want to ensure disaster recovery with multi-region deployment. What is the best practice for configuring GKE clusters?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy separate regional clusters in two or more regions.
For disaster recovery with a multi-region deployment, the best practice is to deploy separate regional clusters in two or more regions. This ensures that if an entire region fails, traffic can be redirected to the other region's cluster, providing true geographic redundancy. A single cluster, whether zonal or regional, cannot survive a regional outage because it is bound to a single control plane location.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Deploy separate regional clusters in two or more regions.
Why this is correct
Multi-region clusters provide geographic redundancy.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a single zonal cluster with node auto-repair.
Why it's wrong here
Zonal cluster does not survive a zone failure.
✗
Deploy a single cluster with multi-master setup.
Why it's wrong here
GKE does not support multi-master; each cluster has one master.
✗
Use a single regional cluster with multiple zones.
Why it's wrong here
Single regional cluster still fails if the region goes down.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that a regional cluster with multiple zones is sufficient for disaster recovery, but the trap here is that a regional cluster is still confined to a single region and cannot survive a full regional outage.
Detailed technical explanation
How to think about this question
Under the hood, GKE regional clusters replicate the control plane across multiple zones within the same region, but the cluster's metadata and API server are still tied to that region's GCP infrastructure. For true multi-region disaster recovery, you must deploy independent clusters in separate regions and use a global load balancer (e.g., external HTTPS load balancer with backend services pointing to each cluster) to route traffic based on health checks and latency. This approach also requires cross-region data replication (e.g., using Spanner or multi-region Cloud Storage) to ensure state consistency.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Ensure solution and operations reliability — This question tests Ensure solution and operations reliability — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deploy separate regional clusters in two or more regions. — For disaster recovery with a multi-region deployment, the best practice is to deploy separate regional clusters in two or more regions. This ensures that if an entire region fails, traffic can be redirected to the other region's cluster, providing true geographic redundancy. A single cluster, whether zonal or regional, cannot survive a regional outage because it is bound to a single control plane location.
What should I do if I get this PCA question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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