Question 243 of 1,446
Deploy scalable and highly available databases in Google Cloud →mediumMultiple ChoiceObjective-mapped
PCDE Practice Question: Deploy scalable and highly available databases in Google Cloud
A company uses Cloud Bigtable with replication across two regions. They want to ensure that read requests are automatically routed to the nearest available cluster with the lowest latency. Which routing policy should be configured?
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
✓
Multi-cluster routing
Bigtable replication supports two routing policies: single-cluster routing and multi-cluster routing. Multi-cluster routing allows the Bigtable client to route requests to the nearest cluster based on latency, and it automatically fails over to another cluster if the first is unavailable. Any-replica routing is not a valid Bigtable policy. Read-failover routing is a Cloud DNS concept, not Bigtable. Single-cluster routing forces all requests to a specific cluster.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Single-cluster routing
Why it's wrong here
Single-cluster routing sends all requests to one cluster, not the nearest.
- ✗
Any-replica routing
Why it's wrong here
Any-replica is not a valid Bigtable routing policy; it is a concept in other systems.
- ✓
Multi-cluster routing
Why this is correct
Multi-cluster routing routes reads to the nearest cluster based on latency and provides automatic failover, meeting the requirement.
- ✗
Read-failover routing policy
Why it's wrong here
This is not a Bigtable routing policy. It sounds like a Cloud DNS routing policy.
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Last reviewed: Jul 4, 2026
This PCDE 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 PCDE exam.
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