DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 troubleshooting a Lambda function that times out when processing large files from Amazon S3. The function is configured with a 3-minute timeout and 128 MB memory. Which TWO actions would MOST likely resolve the issue? (Choose TWO.)
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use S3 multipart upload for large files to improve throughput.
Option B is correct because increasing Lambda memory often increases CPU and network throughput, reducing processing time. Option D is correct because using S3 multipart upload for large files can reduce the time to download/upload. Option A is wrong because updating the function code may not help if the issue is resource constraints. Option C is wrong because changing the trigger to SQS adds complexity and does not directly address the timeout. Option E is wrong because increasing timeout without addressing performance may just delay the failure.
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 S3 multipart upload for large files to improve throughput.
Why this is correct
Multipart upload can improve performance for large objects.
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.
✓
Increase the memory allocation for the Lambda function.
Why this is correct
More memory often correlates with more CPU, improving processing speed.
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.
✗
Change the S3 event notification to send messages to an Amazon SQS queue instead.
Why it's wrong here
This does not directly affect the processing time of the Lambda function.
✗
Update the Lambda function code to use a more efficient algorithm.
Why it's wrong here
While possibly helpful, it is not the most likely to resolve the timeout issue quickly.
✗
Increase the Lambda function timeout to 15 minutes.
Why it's wrong here
Simply increasing timeout may not fix the underlying performance issue.
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: Use S3 multipart upload for large files to improve throughput. — Option B is correct because increasing Lambda memory often increases CPU and network throughput, reducing processing time. Option D is correct because using S3 multipart upload for large files can reduce the time to download/upload. Option A is wrong because updating the function code may not help if the issue is resource constraints. Option C is wrong because changing the trigger to SQS adds complexity and does not directly address the timeout. Option E is wrong because increasing timeout without addressing performance may just delay the failure.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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