Cloud Digital Leader Fundamental Cloud Concepts Practice Question
A global e-commerce platform runs on Compute Engine instances in multiple regions. Users report high latency when accessing the website from South America. The company wants to improve performance by delivering static content (images, CSS, JS) from the nearest edge location. Which Google Cloud service should they implement?
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
Cloud CDN uses Google's global edge network (Points of Presence) to cache static content closer to users, reducing latency. Cloud Load Balancing distributes traffic but doesn't cache content. Cloud Armor provides security. Cloud DNS resolves domain names.
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 CDN
Why this is correct
Cloud CDN uses Google's globally distributed edge points of presence to cache static and dynamic content close to users. It intercepts HTTP(S) requests via the load balancing infrastructure and serves cached responses when possible, which reduces latency and cuts compute engine instance load. For a global e-commerce platform, caching product catalogs and media dramatically accelerates page rendering and improves customer experience.
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Cloud DNS
Why it's wrong here
Cloud DNS is an authoritative domain name system service that translates a hostname such as www.example.com into an IP address. It does not store or deliver content; its role ends once the client knows which IP to connect to. While DNS resolvers do cache entire DNS records, Cloud DNS responses themselves are not content caches, so they cannot reduce web page or asset latency.
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Cloud Load Balancing
Why it's wrong here
Cloud Load Balancing distributes client traffic across multiple backend instances or regional backends to avoid overloading a single compute engine instance. It performs health checks and routes to the best available backend, which supports high availability and scaling, but it never stores payloads. Because it passes through each request to the origin for a response, it has no mechanism to reuse a cached copy and therefore does not accelerate content delivery.
- ✗
Cloud Armor
Why it's wrong here
Cloud Armor is a web application firewall that inspects incoming requests against OWASP Top 10 rules, IP allowlists, and geographic restrictions. It can deny malicious traffic and mitigate DDoS attacks, but it acts on the request before it reaches the content layer. Its defensive decisions are per-packet or per-request policies; it does not retain or serve cached responses, so it has no effect on reducing latency for legitimate content.
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Cloud Digital Transformation
Key term
Compute Engine
Compute Engine is Google Cloud's Infrastructure-as-a-Service (IaaS) offering that lets you create and run virtual machines on Google's infrastructure.
Key term
Google Cloud
Google Cloud is a suite of cloud computing services offered by Google that provides infrastructure, platform, and software solutions over the internet.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This GCDL 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 GCDL exam.