CV0-004 Cloud Architecture and Design Practice Question
A company hosts a web application on AWS and wants to improve latency for global users. Which service should they use to cache static content at edge locations?
⚠ Common exam trap
CV0-004 often tests the distinction between services that improve performance (CloudFront for caching, Global Accelerator for network path optimization) and those that don't (ALB for load balancing, Route 53 for DNS).
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
✓
AWS CloudFront
AWS CloudFront is a content delivery network (CDN) that caches static content at edge locations worldwide, reducing latency for global users. It integrates with AWS services like S3 and EC2, and supports dynamic content acceleration. The other options do not provide edge caching for static content.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Application Load Balancer
Why it's wrong here
An Application Load Balancer distributes requests across targets within a region and holds no edge cache, so static content is not stored closer to global users. It tempts because it fronts web applications, and would be right for layer 7 routing rather than caching.
- ✓
AWS CloudFront
Why this is correct
AWS CloudFront caches static content at edge locations worldwide, directly satisfying the global low-latency requirement. Requests terminate at the nearest point of presence rather than the origin region, cutting round-trip time. Unlike regional services such as S3 alone, CloudFront's distributed edge network is purpose-built for this caching scenario.
- ✗
AWS Global Accelerator
Why it's wrong here
Global Accelerator routes traffic over the AWS backbone to regional endpoints; it does not cache objects at edge locations. It tempts because it improves global latency, and would be correct for accelerating dynamic, non-cacheable traffic rather than serving static content from edge caches.
- ✗
Amazon Route 53
Why it's wrong here
Route 53 resolves DNS queries to endpoints; it stores no content at edge locations, so static objects are never cached nearer users. It tempts because it is a global service affecting latency, and would be correct for DNS-based routing policies, not content caching.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
Related to this question
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.