The answer is that the IAM policy is missing the `logs:CreateLogGroup` permission. This is the most likely cause because the CloudWatch Logs agent requires this action to create the log group if it does not already exist; without it, the agent cannot initialize the destination for log delivery, even though `logs:PutLogEvents` is granted. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your understanding of the agent’s startup sequence—it must first create the log group and log stream before it can send events, a common trap where candidates assume `PutLogEvents` alone is sufficient. A frequent memory tip is to remember the “three Cs” for initial agent setup: CreateLogGroup, CreateLogStream, and then PutLogEvents.
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.
Refer to the exhibit. An EC2 instance is running the CloudWatch Logs agent and uses the IAM policy shown. The agent is configured to send logs to the log group 'MyAppLogGroup'. However, logs are not appearing. 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 policy is missing permission to create the log group if it does not exist.
Option C is correct because the CloudWatch Logs agent cannot automatically create a log group; it requires explicit permission via the `logs:CreateLogGroup` action in the IAM policy. Without this permission, if the log group 'MyAppLogGroup' does not already exist, the agent will fail to send logs, even though the `logs:PutLogEvents` action is allowed. The policy shown only grants `logs:PutLogEvents` and `logs:DescribeLogStreams`, missing the necessary `logs:CreateLogGroup` and `logs:CreateLogStream` actions for initial setup.
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 policy does not match the agent configuration.
Why it's wrong here
The policy allows actions on MyAppLogGroup, so if the agent uses the same name, it matches.
✗
The policy does not allow the 'logs:PutLogEvents' action.
Why it's wrong here
It does allow PutLogEvents.
✓
The policy is missing permission to create the log group if it does not exist.
Why this is correct
The agent may need 'logs:CreateLogGroup' permission to create the log group.
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 Resource ARN incorrectly specifies a wildcard after the log group name.
Why it's wrong here
The wildcard is needed to allow all streams within the log group.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume `logs:PutLogEvents` alone is sufficient for sending logs, overlooking the fact that the agent must first create the log group and log stream if they do not exist, which requires additional permissions.
Detailed technical explanation
How to think about this question
The CloudWatch Logs agent (or unified CloudWatch agent) uses the `PutLogEvents` API to send log data, but it first attempts to create the log group and log stream if they do not exist. The IAM policy must include `logs:CreateLogGroup` (for the log group ARN) and `logs:CreateLogStream` (for the log stream ARN) to allow this automatic creation; otherwise, the agent will silently fail or log an error. In real-world scenarios, this often occurs when deploying agents in new accounts or regions where the log group hasn't been pre-created, leading to missing logs despite correct `PutLogEvents` permissions.
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 policy is missing permission to create the log group if it does not exist. — Option C is correct because the CloudWatch Logs agent cannot automatically create a log group; it requires explicit permission via the `logs:CreateLogGroup` action in the IAM policy. Without this permission, if the log group 'MyAppLogGroup' does not already exist, the agent will fail to send logs, even though the `logs:PutLogEvents` action is allowed. The policy shown only grants `logs:PutLogEvents` and `logs:DescribeLogStreams`, missing the necessary `logs:CreateLogGroup` and `logs:CreateLogStream` actions for initial setup.
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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