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 developer is using Amazon S3 to host a static website. The developer updates the files, but users still see the old version. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The S3 bucket has server-side caching enabled.
Why wrong: S3 does not have server-side caching.
The browser is caching the old files.
Browser caching is the most common cause.
The files are being served from a CloudFront distribution with TTL.
Why wrong: No CloudFront mentioned.
The files are stored in a different S3 bucket.
Why wrong: The bucket is configured for static hosting.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The browser is caching the old files.
S3 static website hosting serves objects directly. If users see old content, it's likely due to browser caching. Option A is correct. Option B is wrong because S3 does not cache content at the bucket level. Option C is wrong because CloudFront is not mentioned. Option D is wrong because S3 static hosting serves files from the bucket.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The S3 bucket has server-side caching enabled.
Why it's wrong here
S3 does not have server-side caching.
The browser is caching the old files.
Why this is correct
Browser caching is the most common cause.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
The files are being served from a CloudFront distribution with TTL.
Why it's wrong here
No CloudFront mentioned.
The files are stored in a different S3 bucket.
Why it's wrong here
The bucket is configured for static hosting.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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.
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FAQ
Troubleshooting and Optimization — This question tests Troubleshooting and Optimization — Read the scenario before looking for a memorised answer..
The correct answer is: The browser is caching the old files. — S3 static website hosting serves objects directly. If users see old content, it's likely due to browser caching. Option A is correct. Option B is wrong because S3 does not cache content at the bucket level. Option C is wrong because CloudFront is not mentioned. Option D is wrong because S3 static hosting serves files from the bucket.
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.
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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.
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