- A
Amazon CloudFront
Why wrong: Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations to improve download performance. It does not accelerate S3 uploads; it is optimized for delivering cached content to viewers.
- B
AWS Direct Connect
Why wrong: AWS Direct Connect establishes a dedicated private network connection from an on-premises data center to AWS. It is not a service that leverages edge locations for upload acceleration, and it requires significant infrastructure setup.
- C
Amazon S3 Transfer Acceleration
Amazon S3 Transfer Acceleration uses AWS edge locations to accelerate uploads to S3 buckets. It works with standard S3 PUT operations and only requires using a different endpoint URL, making it the correct choice for this scenario.
- D
AWS Global Accelerator
Why wrong: AWS Global Accelerator improves the availability and performance of applications by routing traffic over the AWS global network to the optimal endpoint (such as an ALB, NLB, or EC2 instance). It does not directly accelerate S3 uploads and is not designed to integrate with S3 PUT operations.
Quick Answer
The answer is Amazon S3 Transfer Acceleration, which is the correct choice because it leverages AWS edge locations to route uploads over the optimized AWS global network backbone, dramatically reducing latency for users in distant regions like Europe and Asia when sending large files to a bucket in us-west-2. This feature works with standard S3 PUT operations and requires only enabling it on the bucket and updating the endpoint URL, so application changes are minimal. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of how edge locations accelerate data transfers beyond simple content delivery—a common trap is confusing S3 Transfer Acceleration with CloudFront, but remember that CloudFront is for distributing content to users, while Transfer Acceleration speeds up uploads into S3. To accelerate S3 uploads from distant regions via edge locations, think of it as a fast on-ramp to the AWS highway: the edge location grabs your file and races it over the private backbone to your bucket. Memory tip: “TA” stands for Transfer Acceleration—think “Turbocharged Arrival” for uploads.
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 company hosts a file-sharing platform on Amazon S3. The application bucket is in the us-west-2 (Oregon) Region. Users in Europe and Asia experience slow upload speeds when transferring large files. The company wants to improve upload performance by using AWS edge locations to accelerate data transfers to the bucket. The solution must work with standard S3 PUT operations and require minimal application changes. Which AWS feature should the company enable?
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 S3 Transfer Acceleration
Amazon S3 Transfer Acceleration (C) uses AWS edge locations to route uploads over the optimized AWS network backbone, reducing latency for geographically distant clients. It works with standard S3 PUT operations and requires only enabling the feature on the bucket and updating the endpoint URL, minimizing application changes.
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 it's wrong here
Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations to improve download performance. It does not accelerate S3 uploads; it is optimized for delivering cached content to viewers.
- ✗
AWS Direct Connect
Why it's wrong here
AWS Direct Connect establishes a dedicated private network connection from an on-premises data center to AWS. It is not a service that leverages edge locations for upload acceleration, and it requires significant infrastructure setup.
- ✓
Amazon S3 Transfer Acceleration
Why this is correct
Amazon S3 Transfer Acceleration uses AWS edge locations to accelerate uploads to S3 buckets. It works with standard S3 PUT operations and only requires using a different endpoint URL, making it the correct choice for this scenario.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Global Accelerator
Why it's wrong here
AWS Global Accelerator improves the availability and performance of applications by routing traffic over the AWS global network to the optimal endpoint (such as an ALB, NLB, or EC2 instance). It does not directly accelerate S3 uploads and is not designed to integrate with S3 PUT operations.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse CloudFront's download acceleration (caching) with upload acceleration, or assume Direct Connect is a simple, minimal-change solution when it actually requires physical infrastructure and network configuration.
Detailed technical explanation
How to think about this question
S3 Transfer Acceleration works by having clients upload to a nearby edge location via HTTP/HTTPS, which then forwards the data over AWS's private, high-bandwidth network to the destination bucket in us-west-2. This avoids public internet congestion and reduces latency, especially for large files over long distances. The feature uses the `s3-accelerate.amazonaws.com` endpoint and can be enabled per bucket with no changes to the PUT API itself.
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 S3 Transfer Acceleration — Amazon S3 Transfer Acceleration (C) uses AWS edge locations to route uploads over the optimized AWS network backbone, reducing latency for geographically distant clients. It works with standard S3 PUT operations and requires only enabling the feature on the bucket and updating the endpoint URL, minimizing application changes.
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.
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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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