PCNE Configuring Network Services Practice Question
A company wants to use Cloud DNS with a failover routing policy. They have two IP addresses serving the same application: primary in us-east1 and secondary in us-west1. They want traffic to go to primary unless health check fails, then fail over to secondary. Which configuration is required?
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
✓
Create a failover routing policy with primary and secondary targets, each associated with a health check
Cloud DNS failover routing policy requires health checks to be attached to the routing policy. The primary and secondary targets are defined under the policy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a geo routing policy with us-east1 as primary and us-west1 as secondary
Why it's wrong here
Geo routing policy routes based on location, not health.
- ✗
Use a response policy to override the DNS response
Why it's wrong here
Response policy is for overriding DNS responses, not failover.
- ✓
Create a failover routing policy with primary and secondary targets, each associated with a health check
Why this is correct
Failover policy uses health checks to determine active target.
- ✗
Create two A records with weighting 100 and 0
Why it's wrong here
Weighted round robin does not support health-based failover.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCNE 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 PCNE exam.