The correct next step is to check the DatabaseConnections CloudWatch metric to see if the connection count is near the max_connections limit. When you troubleshoot RDS connection timeouts, normal CPU and memory metrics strongly suggest the issue is not resource starvation but rather a connection ceiling being hit; each new connection consumes a small amount of memory, but the real bottleneck is the configured max_connections parameter, which, once reached, causes the database to reject new connections with timeouts. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your ability to differentiate between infrastructure-level metrics and database-specific limits—a common trap is jumping to Enhanced Monitoring or query latency, but those address OS processes or slow queries, not connection saturation. Remember the mnemonic: “CPU and memory are fine, check the line—DatabaseConnections tells you if you’ve hit the max_connections sign.”
DOP-C02 Incident and Event Response Practice Question
This DOP-C02 practice question tests your understanding of incident and event response. 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 company runs a critical application on an Amazon RDS for MySQL DB instance. The application experiences intermittent connection timeouts. The DevOps team notices that the DB instance's CPU and memory metrics are normal. What should the team check NEXT to diagnose the issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Check the 'DatabaseConnections' CloudWatch metric to see if the connection count is near the max_connections limit
Option A is correct because connection timeouts with normal CPU/memory often indicate that the DB instance's maximum connections limit has been reached. Option B is wrong because Enhanced Monitoring is for OS-level metrics, not connections; C is wrong because query latency is not directly related to connection timeouts; D is wrong because storage is not the issue here.
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.
✗
Enable Enhanced Monitoring to check OS-level metrics
Why it's wrong here
Enhanced Monitoring provides OS metrics, not connection counts.
✗
Examine the slow query log to identify long-running queries
Why it's wrong here
Slow queries cause latency, not necessarily connection timeouts.
✗
Verify that the DB instance's storage is not full
Why it's wrong here
Storage issues would cause different symptoms.
✓
Check the 'DatabaseConnections' CloudWatch metric to see if the connection count is near the max_connections limit
Why this is correct
Connection timeouts often result from hitting the max connections limit.
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 DOP-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.
Incident and Event Response — This question tests Incident and Event Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Check the 'DatabaseConnections' CloudWatch metric to see if the connection count is near the max_connections limit — Option A is correct because connection timeouts with normal CPU/memory often indicate that the DB instance's maximum connections limit has been reached. Option B is wrong because Enhanced Monitoring is for OS-level metrics, not connections; C is wrong because query latency is not directly related to connection timeouts; D is wrong because storage is not the issue here.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-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 DOP-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 DOP-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.