PCDOE Optimizing service performance Practice Question
You are using Cloud CDN with an external HTTPS load balancer. Users in Asia report slow load times for static assets. The origin is in us-central1. What should you do to improve performance?
⚠ Common exam trap
Google Cloud often tests the distinction between network-level optimizations (like premium tier) and application-level caching (like CDN), and the trap here is assuming that faster routing alone can solve latency for repeated static asset requests, when in fact caching eliminates the need for those requests to reach the origin at all.
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
✓
Enable Cloud CDN and configure cache modes for static content.
Cloud CDN caches static assets at Google's global edge locations, reducing latency for users in Asia by serving content from a nearby point of presence instead of the us-central1 origin. Enabling Cloud CDN and configuring cache modes for static content (e.g., setting Cache-Control headers or using origin cache policies) ensures that frequently requested assets are served from cache, dramatically improving load times for geographically distant users.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Switch the load balancer to an internal HTTPS load balancer with gRPC.
Why it's wrong here
Not applicable for static assets.
- ✗
Use premium tier networking for the load balancer.
Why it's wrong here
Premium tier improves routing but does not cache.
- ✓
Enable Cloud CDN and configure cache modes for static content.
Why this is correct
CDN caches content at edge locations, reducing latency.
- ✗
Configure a serverless NEG to route traffic to Cloud Functions.
Why it's wrong here
Not relevant for static assets.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCDOE 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 PCDOE exam.