PCNE Practice Question: Managing, Monitoring, and Optimising Network Operations
An organization needs to reduce egress costs for a global application serving users worldwide. The application serves static content from Compute Engine instances. Which action is most cost-effective?
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
✓
Use Cloud CDN to cache content at edge locations
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Move all instances to a single region to reduce cross-region traffic
Why it's wrong here
Centralizing may increase latency for distant users and not reduce egress to internet.
- ✓
Use Cloud CDN to cache content at edge locations
Why this is correct
Cloud CDN reduces egress by serving cached content from edge PoPs, lowering bandwidth to origin.
- ✗
Upgrade to premium tier networking
Why it's wrong here
Premium tier may improve performance but increases cost, not reduce.
- ✗
Enable Private Google Access
Why it's wrong here
Private Google Access avoids internet egress for Google APIs, not for user traffic.
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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.