The answer is to increase the Lambda function’s timeout to 15 minutes and allocate more memory, such as 1024 MB. This solution directly resolves the timeout errors for large image uploads because Lambda’s execution duration and CPU power scale with allocated memory; more memory provides faster processing, while a longer timeout prevents premature termination during heavy resizing tasks. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of Lambda’s synchronous invocation limits and the trade-offs between serverless cost and performance—a common trap is to over-engineer with services like Elastic Transcoder or EC2, which are unnecessary for simple image resizing. Remember that Lambda’s maximum timeout is 900 seconds (15 minutes), and memory can go up to 10,240 MB, so for large image processing, always prioritize adjusting these two knobs before adding complexity. A useful memory tip: “Time and memory fix the heavy imagery.”
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing solutions. 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 social media startup uses AWS Lambda functions to process user-uploaded images. The Lambda function resizes images and stores them in Amazon S3. The function uses the S3 SDK to put objects. Recently, the team noticed that the function sometimes fails with 'Timeout' errors for large images. The Lambda function has a timeout of 5 seconds and 256 MB of memory. The team wants to improve the solution to handle larger images reliably and cost-effectively. Which solution should the team implement?
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's timeout to 15 minutes and allocate more memory (e.g., 1024 MB).
Option C (increase memory and timeout) directly addresses the issue of processing large images. Option A (Elastic Transcoder) is for video. Option B (EC2 with EBS) is overkill and not serverless. Option D (API Gateway with larger payload) does not solve the Lambda processing limit.
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.
✗
Migrate the image processing to a dedicated Amazon EC2 instance with an EBS volume.
Why it's wrong here
This removes serverless benefits and increases operational overhead.
✓
Increase the Lambda function's timeout to 15 minutes and allocate more memory (e.g., 1024 MB).
Why this is correct
More memory and timeout allow processing larger images within Lambda limits.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon API Gateway with a larger payload limit to offload the image processing.
Why it's wrong here
API Gateway does not process images; it only passes requests to Lambda.
✗
Use AWS Elastic Transcoder to resize images instead of Lambda.
Why it's wrong here
Elastic Transcoder is for video transcoding, not image resizing.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which SAP-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.
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — 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's timeout to 15 minutes and allocate more memory (e.g., 1024 MB). — Option C (increase memory and timeout) directly addresses the issue of processing large images. Option A (Elastic Transcoder) is for video. Option B (EC2 with EBS) is overkill and not serverless. Option D (API Gateway with larger payload) does not solve the Lambda processing limit.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-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 SAP-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 SAP-C02 exam.
Question Discussion
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