The correct answer involves using multipart uploads, S3 Transfer Acceleration, and multiple S3 prefixes to optimize upload performance. Multipart upload is essential for large objects because it allows parallel uploads of parts, significantly improving throughput and resilience to network failures. S3 Transfer Acceleration leverages AWS edge locations to reduce latency over long distances by routing traffic through the AWS global network. Using multiple S3 prefixes increases the request rate by distributing uploads across more S3 partition keys, which is critical for achieving high aggregate throughput. On the DVA-C02 exam, this scenario tests your understanding of S3 performance best practices, often appearing as a multi-select question where common traps include confusing S3 Select (for data retrieval) or Glacier (for archival) with upload optimization. Remember the mnemonic “MAP” for Multipart, Acceleration, and Prefixes to recall the three key actions for faster S3 uploads.
DVA-C02 Troubleshooting and Optimization Practice Question
This DVA-C02 practice question tests your understanding of troubleshooting and optimization. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 is using Amazon S3 to store large objects. Users report that uploads are slow. Which THREE actions should the developer take to optimize upload performance?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use multipart upload for objects over 100 MB.
Option A is correct because multipart upload improves performance for large objects. Option B is correct because using S3 Transfer Acceleration reduces latency. Option C is correct because using S3 prefixes increases request rate performance. Option D is wrong because S3 Select is for retrieving subsets of data, not uploads. Option E is wrong because Glacier is for archival, not for active uploads.
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.
✓
Use multipart upload for objects over 100 MB.
Why this is correct
Multipart upload improves throughput by parallelizing uploads.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use S3 Select to upload only specific parts of the object.
Why it's wrong here
S3 Select is for retrieval, not upload.
✓
Enable S3 Transfer Acceleration.
Why this is correct
Reduces latency by using AWS edge locations.
Related concept
Read the scenario before looking for a memorised answer.
✗
Transition objects to S3 Glacier after upload.
Why it's wrong here
Does not affect upload speed.
✓
Use multiple S3 prefixes to increase request rate.
Why this is correct
Spreading requests across prefixes improves performance.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Troubleshooting and Optimization — This question tests Troubleshooting and Optimization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use multipart upload for objects over 100 MB. — Option A is correct because multipart upload improves performance for large objects. Option B is correct because using S3 Transfer Acceleration reduces latency. Option C is correct because using S3 prefixes increases request rate performance. Option D is wrong because S3 Select is for retrieving subsets of data, not uploads. Option E is wrong because Glacier is for archival, not for active uploads.
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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