Google PCA Practice Question: Analysing and Optimising Technical and Business Processes
A company runs a web application behind a Cloud HTTP(S) Load Balancer. Static content (images, CSS, JS) is served from Cloud Storage. They want to reduce latency for users worldwide. Which action is MOST 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
✓
Enable Cloud CDN on the backend bucket
Cloud CDN caches content at global edge locations, reducing latency for users. Enabling Cloud CDN on the backend bucket serves static content from the edge. Using a multi-region bucket provides regional redundancy but does not reduce latency as effectively as CDN. Increasing machine size does not help with static content serving.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable Cloud CDN on the backend bucket
Why this is correct
Cloud CDN caches static content at edge locations worldwide, significantly reducing latency for users regardless of their location.
- ✗
Increase the number of frontend instances
Why it's wrong here
The frontend instances handle dynamic content; static content is served by Cloud Storage, so increasing frontend instances doesn't reduce latency for static content.
- ✗
Use Cloud Armor to block high-latency requests
Why it's wrong here
Cloud Armor is for security, not performance optimization.
- ✗
Use a multi-regional Cloud Storage bucket
Why it's wrong here
A multi-regional bucket stores data in multiple regions, but users still fetch from the nearest region; CDN caches at hundreds of edge points, which is better for latency.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Multi-region
Multi-region refers to a deployment strategy where IT resources, applications, or data are hosted in multiple geographic locations to improve availability, disaster recovery, and performance.
Key term
Cloud CDN
A Cloud CDN is a network of servers spread around the world that stores copies of your website or app content so it loads faster for users no matter where they are.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.