DOP-C02 SNS Subscription Confirmation Practice Question
This DOP-C02 practice question tests your understanding of monitoring and logging. 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. A key principle to apply: sNS Subscription Confirmation. 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.
Network Topology
Refer to the exhibit. A DevOps engineer checks the CloudWatch alarm configuration and state. The alarm is in ALARM state for CPUUtilization averaging 90% over 5 minutes, but no notification was received. What is the most likely reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Network Topology
A
The SNS topic does not have any confirmed subscriptions.
Without confirmed subscriptions, notifications are not sent.
B
The EC2 instance is stopped.
Why wrong: If instance were stopped, there would be no CPU data, and alarm would be INSUFFICIENT_DATA.
C
The alarm period is set to 300 seconds, which is too long.
Why wrong: 300 seconds is a valid period; notifications should still be sent.
D
The alarm has insufficient data to evaluate.
Why wrong: The alarm state is ALARM, so data is sufficient.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The SNS topic does not have any confirmed subscriptions.
The alarm is in ALARM state, indicating that CPUUtilization exceeded the threshold, and data is present. However, no notification was received because the SNS topic specified in the alarm actions likely has no confirmed subscriptions. For SNS to deliver a notification (e.g., email), each subscription must be confirmed by the recipient; otherwise, messages are not sent.
Key principle: SNS Subscription Confirmation
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
The SNS topic does not have any confirmed subscriptions.
Why this is correct
Without confirmed subscriptions, notifications are not sent.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
SNS Subscription Confirmation
✗
The EC2 instance is stopped.
Why it's wrong here
If instance were stopped, there would be no CPU data, and alarm would be INSUFFICIENT_DATA.
✗
The alarm period is set to 300 seconds, which is too long.
Why it's wrong here
300 seconds is a valid period; notifications should still be sent.
✗
The alarm has insufficient data to evaluate.
Why it's wrong here
The alarm state is ALARM, so data is sufficient.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Even if an SNS topic ARN is correctly configured in alarm actions, notifications will not be sent unless at least one subscription is confirmed. Candidates may overlook the importance of confirming SNS subscriptions.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
SNS Subscription Confirmation
CloudWatch Alarm Actions
TExam Day Tips
→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
SNS Subscription Confirmation
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. SNS Subscription Confirmation 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.
Review sNS Subscription Confirmation, then practise related DOP-C02 questions on the same topic to reinforce the concept.
Monitoring and Logging — This question tests Monitoring and Logging — SNS Subscription Confirmation.
What is the correct answer to this question?
The correct answer is: The SNS topic does not have any confirmed subscriptions. — The alarm is in ALARM state, indicating that CPUUtilization exceeded the threshold, and data is present. However, no notification was received because the SNS topic specified in the alarm actions likely has no confirmed subscriptions. For SNS to deliver a notification (e.g., email), each subscription must be confirmed by the recipient; otherwise, messages are not sent.
What should I do if I get this DOP-C02 question wrong?
Review sNS Subscription Confirmation, then practise related DOP-C02 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
SNS Subscription Confirmation
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Question Discussion
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