CLF-C02 Cloud Technology and Services Practice Question
A company runs a global e-commerce website hosted on Amazon EC2 instances in the us-west-2 Region. The website includes static assets (product images, CSS, JavaScript) and dynamic content generated by the application. The company wants to improve page load times for users in Europe and Asia by caching static content at edge locations, while also reducing the direct load on the EC2 instances. Which AWS service should the company use?
⚠ Common exam trap
A common mix-up: candidates confuse Global Accelerator (which optimizes network routing for dynamic content) with CloudFront (which caches static content at edge locations), leading candidates to pick Global Accelerator for a caching use case.
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 users in Europe and Asia. By offloading static content delivery from the origin EC2 instances, CloudFront directly reduces the load on those servers, improving overall performance and scalability.
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
Amazon CloudFront is a content delivery network (CDN) that caches static and dynamic content at edge locations worldwide, dramatically reducing latency for global users. It offloads requests from the EC2 origin server, handling high concurrency and protecting against traffic spikes. CloudFront also supports custom origins and integrates with AWS Shield for DDoS protection, making it ideal for a global e-commerce website.
- ✗
AWS Global Accelerator
Why it's wrong here
Global Accelerator improves the availability and performance of applications by directing traffic to optimal endpoints over the AWS global network, but it does not cache static content. It is used for TCP/UDP traffic, not for caching objects.
When this WOULD be correct
A company runs a global gaming application that requires low latency for real-time user interactions and needs to route traffic to the nearest healthy endpoint in multiple AWS regions. AWS Global Accelerator would be the correct choice because it provides static IP addresses and directs traffic over the AWS global network to optimize performance and availability for dynamic content.
- ✗
Amazon Route 53
Why it's wrong here
Amazon Route 53 is primarily a DNS web service that translates human-readable domain names into IP addresses. While it can route traffic globally using policies like latency-based routing and geolocation, it does not cache or serve web content itself. DNS responses are cached by resolvers, but that is not equivalent to caching HTTP assets, so it cannot reduce the load on EC2 instances for content delivery.
When this WOULD be correct
A company wants to route end users to the nearest healthy application endpoint with low latency and DNS-based failover, while also managing domain names. In that scenario, Route 53 would be the correct answer.
- ✗
AWS Direct Connect
Why it's wrong here
AWS Direct Connect provides a dedicated, private network connection from an on-premises data center to AWS, bypassing the public internet for consistent and lower-latency connectivity. However, it does not cache content at edge locations or serve static assets to end users globally. It is intended for hybrid cloud workloads and high-bandwidth data transfer, not for offloading web requests or improving the experience of geographically distributed customers.
When this WOULD be correct
A company has a hybrid architecture with on-premises data centers and needs a consistent, low-latency connection to AWS resources (e.g., for real-time data replication or large-scale data transfer) and wants to reduce internet bandwidth costs.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CLF-C02 exam frequently reuses these exact scenarios with slightly different constraints.
✓Amazon CloudFrontCorrect answer▾
Why this is correct
Amazon CloudFront is a content delivery network (CDN) that caches static and dynamic content at edge locations worldwide, dramatically reducing latency for global users. It offloads requests from the EC2 origin server, handling high concurrency and protecting against traffic spikes. CloudFront also supports custom origins and integrates with AWS Shield for DDoS protection, making it ideal for a global e-commerce website.
✗AWS Global AcceleratorWrong answer — click to see why▾
Why this is wrong here
AWS Global Accelerator improves performance for dynamic content by routing traffic over the AWS global network, but it does not cache static assets at edge locations. The question specifically requires caching static content, which is a feature of CloudFront, not Global Accelerator.
★ When this WOULD be the correct answer
A company runs a global gaming application that requires low latency for real-time user interactions and needs to route traffic to the nearest healthy endpoint in multiple AWS regions. AWS Global Accelerator would be the correct choice because it provides static IP addresses and directs traffic over the AWS global network to optimize performance and availability for dynamic content.
Why candidates choose this
Candidates may confuse Global Accelerator's edge location routing with CloudFront's caching capabilities, assuming that any edge-based service can cache content. They might also think that improving performance for global users automatically implies caching, overlooking the distinction between acceleration and caching.
✗Amazon Route 53Wrong answer — click to see why▾
Why this is wrong here
Amazon Route 53 is a DNS service, not a content delivery network (CDN). It does not cache static assets at edge locations or reduce load on EC2 instances; it only translates domain names to IP addresses.
★ When this WOULD be the correct answer
A company wants to route end users to the nearest healthy application endpoint with low latency and DNS-based failover, while also managing domain names. In that scenario, Route 53 would be the correct answer.
Why candidates choose this
Candidates may confuse Route 53's latency-based routing or geolocation routing with edge caching, thinking it can improve page load times by directing users to nearby servers, but it does not cache content.
✗AWS Direct ConnectWrong answer — click to see why▾
Why this is wrong here
AWS Direct Connect establishes a dedicated network connection from on-premises to AWS, but it does not cache content at edge locations or improve page load times for global users; it only provides consistent network performance for hybrid workloads.
★ When this WOULD be the correct answer
A company has a hybrid architecture with on-premises data centers and needs a consistent, low-latency connection to AWS resources (e.g., for real-time data replication or large-scale data transfer) and wants to reduce internet bandwidth costs.
Why candidates choose this
Candidates may think Direct Connect can improve performance for global users by providing a faster path to AWS, but it does not address caching or edge delivery; it is a network connectivity service, not a content delivery service.
Analysis generated from the official CLF-C02blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.