The correct answer is to subscribe to RDS Event Notifications and create an SNS topic for 'failover' events because these notifications are pushed within seconds of a failover being detected, meeting the strict 30-second requirement. Amazon RDS Event Notifications operate as a near-real-time push mechanism, directly alerting you the moment a failover event occurs, unlike polling-based monitoring which introduces latency. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your understanding of the trade-offs between event-driven and metric-driven monitoring—a common trap is assuming CloudWatch alarms work fast enough, but their evaluation periods (often one minute) introduce unavoidable delays. Enhanced Monitoring, while granular to one second, reports system metrics like CPU and memory, not failover status, and CloudTrail logs API calls with minutes of lag. Memory tip: think "push beats pull" for failover detection—Event Notifications push instantly, while CloudWatch pulls and evaluates.
DBS-C01 Monitoring and Troubleshooting Practice Question
This DBS-C01 practice question tests your understanding of monitoring and troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 financial services company runs a critical PostgreSQL database on Amazon RDS. The DBA needs to ensure that any database failover is detected within 30 seconds. Which monitoring approach should be used to meet this requirement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Subscribe to RDS Event Notifications and create an SNS topic for 'failover' events.
Option C is correct because Amazon RDS Event Notifications for 'failover' events are delivered within seconds. Option A is wrong because CloudWatch metric 'DatabaseConnections' dropping to zero may indicate failover but the alarm evaluation period is typically 1 minute, causing delay. Option B is wrong because Enhanced Monitoring metrics have a granularity of 1 second but do not directly indicate failover. Option D is wrong because CloudTrail logs API calls like FailoverDBCluster but these are not real-time, often with minutes delay.
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.
✓
Subscribe to RDS Event Notifications and create an SNS topic for 'failover' events.
Why this is correct
Event notifications are near real-time and can trigger actions within seconds.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a CloudWatch alarm on the 'DatabaseConnections' metric with a 1-minute evaluation period.
Why it's wrong here
The alarm period is too long and may not trigger within 30 seconds.
✗
Use Enhanced Monitoring to monitor the 'engine' process status every second.
Why it's wrong here
Enhanced Monitoring does not directly signal a failover event.
✗
Enable CloudTrail and monitor the 'FailoverDBCluster' API call.
Why it's wrong here
CloudTrail logs are typically delivered within minutes, not seconds.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which DBS-C01 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.
Monitoring and Troubleshooting — This question tests Monitoring and Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Subscribe to RDS Event Notifications and create an SNS topic for 'failover' events. — Option C is correct because Amazon RDS Event Notifications for 'failover' events are delivered within seconds. Option A is wrong because CloudWatch metric 'DatabaseConnections' dropping to zero may indicate failover but the alarm evaluation period is typically 1 minute, causing delay. Option B is wrong because Enhanced Monitoring metrics have a granularity of 1 second but do not directly indicate failover. Option D is wrong because CloudTrail logs API calls like FailoverDBCluster but these are not real-time, often with minutes delay.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-C01 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 DBS-C01 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 DBS-C01 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.