- A
Amazon CloudFront
Correct. Amazon CloudFront is a CDN that caches content at edge locations to deliver low latency and high throughput to users globally. It also offloads origin servers and provides DDoS protection via AWS Shield.
- B
AWS Global Accelerator
Why wrong: Incorrect. AWS Global Accelerator improves performance for TCP/UDP traffic by directing requests to the nearest healthy endpoint, but it does not cache content. It is used for non-HTTP protocols and to improve network path, not for static asset delivery.
- C
Amazon Route 53 latency-based routing
Why wrong: Incorrect. Amazon Route 53 latency-based routing directs users to the endpoint with the lowest latency, but it does not cache assets or offload traffic from the origin. It only handles DNS resolution, not content delivery.
- D
AWS WAF
Why wrong: Incorrect. AWS WAF is a web application firewall that helps protect web applications from common exploits. It does not cache content or improve content delivery performance. It can be used in conjunction with CloudFront but is not a CDN solution.
Quick Answer
The answer is Amazon CloudFront, the correct choice because it is a content delivery network (CDN) that caches static assets like images, CSS, and JavaScript at edge locations worldwide, dramatically reducing latency for global users while offloading requests from the origin EC2 instances. CloudFront also integrates with AWS Shield Standard to provide automatic, always-on protection against common DDoS attacks, directly meeting all three requirements of low latency, reduced server load, and security. On the AWS Certified Cloud Practitioner CLF-C02 exam, this scenario tests your understanding of how a CDN solves global performance issues and how AWS services layer security without extra configuration—a common trap is confusing CloudFront with S3 Transfer Acceleration or a standalone load balancer, but only CloudFront combines caching at the edge with built-in DDoS protection. Memory tip: think of CloudFront as your “front line” for static files—it fights latency and DDoS attacks from the edge, so your EC2 instances can breathe easy.
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A media company hosts its website on Amazon EC2 instances in the us-east-1 Region. Static assets such as images, CSS, and JavaScript files are stored in an Amazon S3 bucket. Users across the globe report slow page load times due to high latency when fetching these assets. The company wants to deliver the static content with low latency and high transfer speeds to users worldwide, reduce the load on the EC2 instances, and add protection against common DDoS attacks. Which AWS service should the company use?
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
Amazon CloudFront
Amazon CloudFront is a content delivery network (CDN) that caches static assets (images, CSS, JavaScript) at edge locations worldwide, reducing latency for global users. It offloads requests from the EC2 origin by serving cached content directly from the edge, and it integrates with AWS Shield Standard to provide automatic protection against common DDoS attacks. This directly addresses the company's requirements for low latency, reduced EC2 load, and DDoS protection.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Amazon CloudFront
Why this is correct
Correct. Amazon CloudFront is a CDN that caches content at edge locations to deliver low latency and high throughput to users globally. It also offloads origin servers and provides DDoS protection via AWS Shield.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Global Accelerator
- ✗
Amazon Route 53 latency-based routing
Why it's wrong here
Incorrect. Amazon Route 53 latency-based routing directs users to the endpoint with the lowest latency, but it does not cache assets or offload traffic from the origin. It only handles DNS resolution, not content delivery.
- ✗
AWS WAF
Why it's wrong here
Incorrect. AWS WAF is a web application firewall that helps protect web applications from common exploits. It does not cache content or improve content delivery performance. It can be used in conjunction with CloudFront but is not a CDN solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse AWS Global Accelerator with a CDN, but Global Accelerator does not cache content—it only optimizes network path routing, making it unsuitable for static asset delivery.
Detailed technical explanation
How to think about this question
CloudFront uses a global network of over 600 Points of Presence (PoPs) to cache static assets, reducing the round-trip time for users far from us-east-1. Under the hood, it supports origin shield to further reduce load on the S3 bucket by aggregating requests, and it integrates with AWS Shield Advanced for enhanced DDoS mitigation. In a real-world scenario, a media company with a global audience would see latency drop from hundreds of milliseconds to under 50 ms for cached assets, while EC2 instances handle only dynamic requests.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon CloudFront — Amazon CloudFront is a content delivery network (CDN) that caches static assets (images, CSS, JavaScript) at edge locations worldwide, reducing latency for global users. It offloads requests from the EC2 origin by serving cached content directly from the edge, and it integrates with AWS Shield Standard to provide automatic protection against common DDoS attacks. This directly addresses the company's requirements for low latency, reduced EC2 load, and DDoS protection.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on CLF-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company hosts a static website on Amazon S3. The website serves product images and documents to customers around the world. Users in distant regions report slow load times. The company wants to reduce latency for all users without changing the existing S3 bucket configuration. Which AWS service should the company use?
medium- ✓ A.Amazon CloudFront
- B.AWS Direct Connect
- C.Amazon Route 53
- D.AWS Global Accelerator
Why A: Amazon CloudFront is a content delivery network (CDN) that caches static content (e.g., images, documents) at edge locations worldwide. By distributing content from the nearest edge location to the user, CloudFront significantly reduces latency without requiring any changes to the existing S3 bucket configuration. The origin remains the S3 bucket, and CloudFront handles the global distribution automatically.
Keep practising
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Last reviewed: Jun 11, 2026
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services 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 CLF-C02 exam.
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