Google PCA Design and plan a cloud solution architecture Practice Question
A media company wants to serve publicly available images and videos to a global audience with low latency. Which Google Cloud service should they primarily use?
⚠ Common exam trap
Test-takers frequently choose Cloud Storage with a public bucket (Option A) because it seems simplest, overlooking that Cloud CDN is required to achieve global low-latency delivery by caching content at edge locations.
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
✓
Cloud CDN with Cloud Storage as the origin.
Cloud CDN with Cloud Storage as the origin is the correct choice because it uses Google's global edge cache to serve publicly available images and videos from Cloud Storage, minimizing latency for a global audience. Cloud CDN caches content at edge locations worldwide, reducing the round-trip time to the origin bucket, while Cloud Storage provides scalable, durable object storage. This combination is purpose-built for delivering static content with low latency and high throughput.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cloud Storage with public bucket serving the files.
Why it's wrong here
Cloud Storage directly serves content but without edge caching, resulting in higher latency; CDN is needed for global scale.
- ✓
Cloud CDN with Cloud Storage as the origin.
Why this is correct
Cloud CDN caches content from Cloud Storage at edge locations, reducing latency for global users.
- ✗
Cloud Run with a container that serves the files.
Why it's wrong here
Cloud Run is serverless compute and not optimized for serving static files globally; it would still benefit from a CDN.
- ✗
Compute Engine with an HTTP server.
Why it's wrong here
Compute Engine instances in a region would have higher latency for global users compared to CDN.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Cloud storage
Cloud storage is a service that lets you save data on remote servers accessed over the internet instead of on your computer's hard drive.
Key term
Latency
Latency is the time delay between a request being sent over a network and the response being received, often measured in milliseconds.
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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.