PCNE Practice Question: Designing, Planning, and Prototyping a GCP Network
Which TWO of the following are valid methods to reduce latency between users in Europe and a GCP-hosted application?
⚠ Common exam trap
Google Cloud often tests the misconception that Premium Tier networking alone reduces latency for end users, but the real latency reduction comes from deploying resources in the same continent as the users (Option E) or using CDN edge caching (Option B), not just the network tier.
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.
Cloud CDN uses Google's globally distributed edge caches to serve content from locations closer to users, reducing round-trip time and latency. For users in Europe, cached static or dynamic content is delivered from a nearby edge PoP, bypassing the need to fetch from the origin server in a potentially distant region.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Establish a Cloud VPN tunnel to the user's ISP.
Why it's wrong here
VPN adds overhead and doesn't reduce latency.
- ✓
Use Cloud CDN to cache content at edge locations.
Why this is correct
Brings content closer to users.
- ✗
Use Premium Tier networking instead of Standard Tier.
Why it's wrong here
Premium Tier improves routing but does not reduce latency as much as moving instances.
- ✗
Use Cloud NAT for outbound traffic.
Why it's wrong here
Cloud NAT is for outbound connectivity, not latency.
- ✓
Deploy Compute Engine instances in a European region.
Why this is correct
Reduces network distance.
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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.