SOA-C02 Monitoring, Logging, and Remediation Practice Question
This SOA-C02 practice question tests your understanding of monitoring, logging, and remediation. 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.
An application running on EC2 instances sends custom metrics to CloudWatch using the PutMetricData API. The metrics are not appearing in the CloudWatch console. The IAM role attached to the instances has the following policy: { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": "cloudwatch:PutMetricData", "Resource": "*" } ] }. What is the most likely cause?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The metric data is being sent to a different AWS region.
The most likely cause is that the metric data is being sent to a different AWS region than the one displayed in the CloudWatch console. The PutMetricData API call includes a regional endpoint, and if the EC2 instance is configured to send metrics to a region other than the one you are viewing, the metrics will not appear. The IAM policy correctly allows the action, so authentication is not the issue.
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.
✗
The metric timestamp is older than 14 days.
Why it's wrong here
Metrics older than 14 days are not visible, but the question implies recent data.
✗
The metric namespace must start with 'AWS/'.
Why it's wrong here
Custom namespaces do not require 'AWS/' prefix.
✓
The metric data is being sent to a different AWS region.
Why this is correct
If the region in the PutMetricData call differs from the console, metrics won't appear.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The IAM policy does not allow the 'cloudwatch:PutMetricData' action.
Why it's wrong here
The policy explicitly allows it.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume the issue is a missing IAM permission or an invalid namespace, but the real problem is a region mismatch between where the data is sent and where it is viewed.
Detailed technical explanation
How to think about this question
When using the PutMetricData API, the request is sent to a regional endpoint (e.g., monitoring.us-east-1.amazonaws.com). If the EC2 instance is configured to target a different region than the one you are monitoring in the console, the data will be stored in that other region. This is a common misconfiguration when instances are launched in one region but the application code or SDK endpoint is hardcoded to another region, or when using environment variables like AWS_DEFAULT_REGION that point to the wrong region.
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.
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
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Monitoring, Logging, and Remediation — This question tests Monitoring, Logging, and Remediation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The metric data is being sent to a different AWS region. — The most likely cause is that the metric data is being sent to a different AWS region than the one displayed in the CloudWatch console. The PutMetricData API call includes a regional endpoint, and if the EC2 instance is configured to send metrics to a region other than the one you are viewing, the metrics will not appear. The IAM policy correctly allows the action, so authentication is not the issue.
What should I do if I get this SOA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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?
Read the scenario before looking for a memorised answer.
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Question Discussion
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