- A
The IAM role associated with the worker nodes does not have the necessary permissions to write to CloudWatch Logs.
The CloudWatch agent needs permissions like logs:PutLogEvents, logs:CreateLogStream, etc. Missing these permissions will prevent log delivery.
- B
The pods are using the fluentd sidecar instead of the CloudWatch agent.
Why wrong: If the sidecar is used, the CloudWatch agent might be redundant, but the question states the agent is deployed; the sidecar might interfere but is not the most likely cause.
- C
The CloudWatch agent is configured to collect logs from stdout, but the application writes logs to files.
Why wrong: The CloudWatch agent can be configured to collect from both files and stdout; if configured for files, this is not an issue.
- D
The DaemonSet is not scheduled on all nodes due to taints and tolerations.
Why wrong: If taints/tolerations are misconfigured, the DaemonSet might not run on all nodes, but this would affect entire nodes, not individual pods.
Quick Answer
The answer is the IAM role associated with the worker nodes lacking the necessary permissions to write to CloudWatch Logs. This is the most likely cause because the CloudWatch agent, deployed as a DaemonSet on EKS, inherits the IAM permissions of the underlying EC2 instance or node role. Without policies like `logs:PutLogEvents` and `logs:CreateLogStream` attached to that role, the agent cannot authenticate or send log data to CloudWatch Logs, even if it correctly reads the pod log files. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of how IAM trust boundaries interact with Kubernetes workloads—a common trap is assuming the agent’s container role or a sidecar is required, when in fact the node’s instance profile is the key. Remember the memory tip: “Node role, not pod role”—the agent runs on the node, so the node’s IAM role must have the CloudWatch Logs write permissions.
DOP-C02 Monitoring and Logging Practice Question
This DOP-C02 practice question tests your understanding of monitoring and logging. 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 Amazon EKS generates logs that need to be sent to CloudWatch Logs for central monitoring. The DevOps team deploys the CloudWatch agent as a DaemonSet in the cluster. However, logs from some pods are not appearing in CloudWatch. Which configuration issue is most likely causing this?
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 choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The IAM role associated with the worker nodes does not have the necessary permissions to write to CloudWatch Logs.
Option B is correct because the CloudWatch agent requires IAM permissions to put logs to CloudWatch Logs; if the node's IAM role lacks these permissions, logs will not be sent. Option A is wrong because the agent typically collects from the pod's log files, not stdout directly. Option C is wrong because a DaemonSet runs on all nodes by default. Option D is wrong because the agent can forward logs without a sidecar if it has access to the log files.
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 IAM role associated with the worker nodes does not have the necessary permissions to write to CloudWatch Logs.
Why this is correct
The CloudWatch agent needs permissions like logs:PutLogEvents, logs:CreateLogStream, etc. Missing these permissions will prevent log delivery.
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 pods are using the fluentd sidecar instead of the CloudWatch agent.
Why it's wrong here
If the sidecar is used, the CloudWatch agent might be redundant, but the question states the agent is deployed; the sidecar might interfere but is not the most likely cause.
- ✗
The CloudWatch agent is configured to collect logs from stdout, but the application writes logs to files.
Why it's wrong here
The CloudWatch agent can be configured to collect from both files and stdout; if configured for files, this is not an issue.
- ✗
The DaemonSet is not scheduled on all nodes due to taints and tolerations.
Why it's wrong here
If taints/tolerations are misconfigured, the DaemonSet might not run on all nodes, but this would affect entire nodes, not individual pods.
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 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 DOP-C02 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.
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Monitoring and Logging — study guide chapter
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Monitoring and Logging — This question tests Monitoring and Logging — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The IAM role associated with the worker nodes does not have the necessary permissions to write to CloudWatch Logs. — Option B is correct because the CloudWatch agent requires IAM permissions to put logs to CloudWatch Logs; if the node's IAM role lacks these permissions, logs will not be sent. Option A is wrong because the agent typically collects from the pod's log files, not stdout directly. Option C is wrong because a DaemonSet runs on all nodes by default. Option D is wrong because the agent can forward logs without a sidecar if it has access to the log files.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 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.
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.
About these practice questions
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Last reviewed: Jun 20, 2026
This DOP-C02 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 DOP-C02 exam.
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