PCNE Configuring Network Services Practice Question
A developer wants to use Cloud CDN to cache content from an external origin backend. Which TWO configurations are required to set this up? (Choose two.)
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
✓
A backend service or backend bucket with the origin defined
To use Cloud CDN with an external origin, you need a backend service or backend bucket that points to the origin, and enable Cloud CDN on that backend. A Global External HTTPS Load Balancer with Internet NEG is not required; Cloud CDN can be used with external backends via backend service. A custom domain is not required for Cloud CDN to work, though often used.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
A backend service or backend bucket with the origin defined
Why this is correct
Required to define the origin from which Cloud CDN fetches content.
- ✗
A custom domain mapped to the load balancer
Why it's wrong here
Optional; Cloud CDN works with any domain.
- ✗
A global static IP address
Why it's wrong here
Not required for Cloud CDN; the load balancer can use an ephemeral IP.
- ✗
A Global External HTTPS Load Balancer with Internet NEG
Why it's wrong here
Cloud CDN can also be used with backend buckets or backend services pointing to external origins without an Internet NEG.
- ✓
Cloud CDN enabled on the backend service or backend bucket
Why this is correct
Required to activate caching.
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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.