CLF-C02 Cloud Technology and Services Practice Question

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 S3 objects at edge locations in 100+ cities worldwide, so static website files are served from a PoP close to each viewer. It terminates HTTP/HTTPS at the edge, reduces origin load by serving cached responses, and lowers latency and data transfer costs for globally distributed users. With security features such as Origin Access Control (OAC), it can keep the S3 bucket private while still serving content publicly through the distribution.

• ✗

  AWS Direct Connect

  Why it's wrong here

  AWS Direct Connect provides a dedicated, private network connection from an on-premises data center or office to AWS for hybrid workloads requiring consistent bandwidth and lower network cost. It does not cache content, operate edge locations for end-user delivery, or accelerate web requests from arbitrary internet users; its benefit is between your network and AWS, not between AWS and website visitors. For a static S3 website the bottleneck is global viewer latency, which Direct Connect cannot address.

  When this WOULD be correct

  A company with a hybrid cloud setup needs a consistent, low-latency connection between its on-premises data center and AWS for real-time data replication or large-scale data migration, and the existing internet connection is unreliable or insufficient.

• ✗

  Amazon Route 53

  Why it's wrong here

  Amazon Route 53 is a managed DNS and domain registrar service that translates names like example.com into IP addresses and can route users using latency, geoproximity, or weighted policies. It only returns the best answer, such as a CloudFront distribution domain name; it never holds or caches the website's files, so it does not reduce the transfer time for static objects. DNS caching does lower resolution time, but it has no effect on how quickly S3 content reaches the browser.

  When this WOULD be correct

  A company wants to route users to the nearest healthy endpoint (e.g., an Application Load Balancer) across multiple AWS regions to improve latency for dynamic content. Route 53 with latency-based routing would be the correct answer.

• ✗

  AWS Global Accelerator

  Why it's wrong here

  AWS Global Accelerator uses static anycast IP addresses and AWS edge locations to route TCP/UDP traffic over optimized paths on the AWS backbone, improving jitter and latency for dynamic applications like gaming or UDP streaming. It does not store or cache objects, and S3 is not a supported endpoint for Global Accelerator, so it cannot offload repeated downloads of static assets. Since a static S3 website mainly benefits from edge caching, Global Accelerator is the wrong layer for this scenario.

  When this WOULD be correct

  A company has a dynamic web application hosted on EC2 instances in a single AWS region, and users worldwide experience high latency. The application uses TCP-based protocols and requires fast failover across multiple regions. AWS Global Accelerator would be the correct answer because it provides static IP addresses and routes traffic over the AWS global network to the optimal endpoint, improving performance for non-cacheable, dynamic content.

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.

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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