DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws 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 developer is using the AWS CLI to upload a large file to S3. The file is 2 GB. The developer uses the following command: aws s3 cp largefile.zip s3://mybucket/. The upload is taking longer than expected. Which change would MOST improve the upload speed?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the multipart upload part size using the --multipart-upload-part-size option.
For large files, the aws s3 cp command automatically uses multipart upload, but increasing the part size can reduce the number of parts and improve throughput. Using aws s3api put-object is single-part and not suitable for large files. Disabling multipart upload would slow it down. S3 Transfer Acceleration reduces latency over long distances, but does not necessarily improve throughput for a single upload.
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.
✗
Disable multipart upload by setting --no-multipart.
Why it's wrong here
Disabling multipart would force single-part upload, which is slower for large files.
✓
Increase the multipart upload part size using the --multipart-upload-part-size option.
Why this is correct
Increasing part size reduces the number of parts, improving speed.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable S3 Transfer Acceleration on the bucket and use the --endpoint-url parameter.
Why it's wrong here
Transfer Acceleration improves speed for distant clients but not necessarily for a single upload if latency is not the bottleneck.
✗
Use the aws s3api put-object command instead.
Why it's wrong here
put-object is for single-part uploads; large files require multipart.
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.
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the multipart upload part size using the --multipart-upload-part-size option. — For large files, the aws s3 cp command automatically uses multipart upload, but increasing the part size can reduce the number of parts and improve throughput. Using aws s3api put-object is single-part and not suitable for large files. Disabling multipart upload would slow it down. S3 Transfer Acceleration reduces latency over long distances, but does not necessarily improve throughput for a single upload.
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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This DVA-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 DVA-C02 exam.
Question Discussion
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