PCNE Configuring Network Services Practice Question
A company wants to expose a web application running on Compute Engine behind a global HTTPS load balancer with Cloud CDN enabled. They need to ensure that only authenticated users can access certain content. Which approach should they use?
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
✓
Generate signed URLs or signed cookies for Cloud CDN.
Cloud CDN supports signed URLs and signed cookies to restrict access to content. Signed URLs are used for individual files, while signed cookies work for multiple files. IAP is for access control at the load balancer level but not specifically for CDN content.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Generate signed URLs or signed cookies for Cloud CDN.
Why this is correct
Signed URLs and signed cookies are the correct way to restrict access to private content served via Cloud CDN.
- ✗
Use Cloud Armor to restrict access by IP address.
Why it's wrong here
Cloud Armor is for security policies like IP allow/deny, not for user authentication.
- ✗
Use Cloud IAP to authenticate users at the load balancer.
Why it's wrong here
IAP is used for access control but not for CDN served content; it would bypass CDN.
- ✗
Configure the backend bucket with a custom header for authentication.
Why it's wrong here
Custom headers are not a standard method for authentication with Cloud CDN.
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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.