The correct answer is to increase the Lambda function memory to 3008 MB. This works because in AWS Lambda, memory is the primary lever for allocating proportional CPU power and network bandwidth; doubling the memory roughly doubles the virtual CPU capacity, which directly reduces execution time for compute-intensive tasks like processing large files. On the AWS Certified Developer Associate DVA-C02 exam, this concept tests your understanding that Lambda’s 15-minute timeout is a hard limit, so when a function times out within that window, the bottleneck is almost always insufficient resources rather than the timeout duration itself. A common trap is assuming you need to split files or adjust triggers, but the most direct fix is increasing memory—and the exam loves to pair this with the fact that 3008 MB is the maximum memory for Lambda (as of the DVA-C02). Memory tip: think “more memory = more muscle” for CPU and I/O, not just storage.
DVA-C02 Troubleshooting and Optimization Practice Question
This DVA-C02 practice question tests your understanding of troubleshooting and optimization. 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 an AWS Lambda function that times out when processing large files from Amazon S3. The function has a 15-minute timeout and 512 MB memory. What should the developer do to resolve this issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the Lambda function memory to 3008 MB.
Option C is correct because increasing memory also increases CPU and network throughput, which can reduce execution time. Option A is wrong because Lambda already supports up to 15 minutes. Option B is wrong because increasing memory is a more direct solution than splitting files. Option D is wrong because S3 Event Notifications are configured, not something to add to solve timeout.
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 Amazon S3 batch operations to split the files before processing.
Why it's wrong here
S3 Batch Operations are for large-scale bulk operations, not for splitting files.
✗
Add an S3 Event Notification to trigger the function asynchronously.
Why it's wrong here
Event notifications are already likely used; not a fix for timeout.
✗
Reduce the Lambda timeout to 5 minutes to force faster processing.
Why it's wrong here
Reducing timeout would cause more failures.
✓
Increase the Lambda function memory to 3008 MB.
Why this is correct
More memory improves CPU and network, speeding up execution.
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: Increase the Lambda function memory to 3008 MB. — Option C is correct because increasing memory also increases CPU and network throughput, which can reduce execution time. Option A is wrong because Lambda already supports up to 15 minutes. Option B is wrong because increasing memory is a more direct solution than splitting files. Option D is wrong because S3 Event Notifications are configured, not something to add to solve timeout.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A Lambda function that processes S3 events is failing with timeout errors. The function downloads a 100 MB file from S3 and processes it. The current timeout is 30 seconds. What is the most cost-effective way to troubleshoot this issue?
easy
A.Use a larger EC2 instance type instead of Lambda
B.Increase the function timeout to 5 minutes
C.Provision a dedicated Lambda instance for the function
✓ D.Increase the function memory allocation to 2048 MB
Why D: Option B is correct because increasing the function's memory also increases CPU allocation, which can speed up processing and reduce runtime. Option A is wrong because Lambda supports up to 15 minutes, but increasing timeout without addressing performance may not help. Option C is wrong because using a larger instance type is not applicable to Lambda. Option D is wrong because Lambda does not support dedicated instances.
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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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