The answer is to request a concurrency limit increase from AWS Support. This is correct because AWS Lambda accounts have a default regional concurrency limit of 1,000 concurrent executions across all functions, and when a single function must handle up to 1,000 concurrent invocations—as in this S3-triggered, DynamoDB-writing workload—any burst beyond that default will cause throttling errors. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this question tests your understanding that concurrency limits are a hard regional quota, not a per-function setting, and that increasing the limit requires a service quota increase via a support ticket. A common trap is confusing reserved concurrency (which caps a function’s concurrency to protect other functions) or provisioned concurrency (which pre-warms instances for latency) with the need to raise the overall account limit. Remember the mnemonic: “Throttling? Ticket it.”—if you hit the default ceiling, you must request a higher floor from Support.
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 company is designing a serverless application using AWS Lambda. The function needs to process files uploaded to an S3 bucket and store metadata in DynamoDB. The solution must handle up to 1,000 concurrent invocations. Which configuration should be used to avoid throttling?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Request a concurrency limit increase from AWS Support
Option A is correct because Lambda functions need to request a concurrency limit increase from AWS Support if the default limit of 1,000 concurrent executions is insufficient. Option B (provisioned concurrency) is for latency-sensitive applications, not for avoiding throttling. Option C (reserved concurrency) limits concurrency. Option D (DLQ) handles failed invocations, not throttling.
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.
✓
Request a concurrency limit increase from AWS Support
Why this is correct
Default concurrency limit is 1,000; for higher concurrency, request an increase.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable provisioned concurrency
Why it's wrong here
Provisioned concurrency is for initializing environments, not for increasing concurrency limit.
✗
Use a dead-letter queue (DLQ) to retry throttled requests
Why it's wrong here
DLQ handles failures after retries, not prevents throttling.
✗
Set reserved concurrency to 1,000
Why it's wrong here
Reserved concurrency limits the function, not increases the account limit.
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.
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Request a concurrency limit increase from AWS Support — Option A is correct because Lambda functions need to request a concurrency limit increase from AWS Support if the default limit of 1,000 concurrent executions is insufficient. Option B (provisioned concurrency) is for latency-sensitive applications, not for avoiding throttling. Option C (reserved concurrency) limits concurrency. Option D (DLQ) handles failed invocations, not throttling.
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.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.