The answer is a mismatch between the log group name in the agent configuration and the resource ARN in the IAM policy. The IAM policy explicitly allows actions only on the log group named MyAppLogs, so if the CloudWatch agent configuration specifies a different log group—even a typo or a new name—the agent’s PutLogEvents calls will fail with an AccessDenied error, and no logs will be sent. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your understanding of how IAM policy resource ARNs must exactly match the log group targeted by the agent; a common trap is assuming the agent has full permissions because the policy includes the correct actions, while overlooking the restrictive resource. Remember the memory tip: “Policy resource must match the agent’s log group name—no mismatch, no missing logs.”
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.
A SysOps administrator is troubleshooting an issue where an EC2 instance is not sending logs to CloudWatch Logs. The instance has the CloudWatch agent installed, but no logs appear in the log group. The IAM role assigned to the instance has the following policy: {"Version": "2012-10-17", "Statement": [{"Effect": "Allow", "Action": ["logs:CreateLogGroup", "logs:CreateLogStream", "logs:PutLogEvents"], "Resource": "arn:aws:logs:us-east-1:123456789012:log-group:MyAppLogs:*"}]}. 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 log group name in the agent configuration does not match the policy resource.
The IAM policy grants permissions only for the log group named 'MyAppLogs' (with a wildcard for streams). If the CloudWatch agent configuration specifies a different log group name, the agent's API calls to CreateLogGroup, CreateLogStream, or PutLogEvents will fail with an AccessDenied error because the resource ARN in the policy does not match the actual log group being targeted. This is the most common cause when the agent is installed and running but no logs appear.
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 log group name in the agent configuration does not match the policy resource.
Why this is correct
The policy allows only actions on MyAppLogs; mismatch causes failure.
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 CloudWatch agent is not running on the instance.
Why it's wrong here
The administrator already confirmed the agent is installed but not sending logs; the issue is likely policy.
✗
The IAM role does not have permission to describe log groups.
Why it's wrong here
Describing is not required for sending logs.
✗
The instance does not have outbound internet access to reach CloudWatch Logs.
Why it's wrong here
While possible, the most likely cause given the policy is a name mismatch.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume the agent is not running or lacks internet access, but the real issue is a mismatch between the IAM policy resource and the log group name in the agent configuration, which causes an implicit deny.
Detailed technical explanation
How to think about this question
The CloudWatch agent uses the AWS SDK to make API calls, and the IAM policy resource ARN must exactly match the log group name used in the agent's configuration file (e.g., /etc/amazon/amazon-cloudwatch-agent.json). The wildcard ':*' at the end of the ARN only covers log streams within that group, not the log group name itself. In real-world scenarios, a typo in the log group name or a mismatch between the agent config and the policy is a frequent oversight that leads to silent failures.
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 log group name in the agent configuration does not match the policy resource. — The IAM policy grants permissions only for the log group named 'MyAppLogs' (with a wildcard for streams). If the CloudWatch agent configuration specifies a different log group name, the agent's API calls to CreateLogGroup, CreateLogStream, or PutLogEvents will fail with an AccessDenied error because the resource ARN in the policy does not match the actual log group being targeted. This is the most common cause when the agent is installed and running but no logs appear.
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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