- A
Modify the canary script to add more logging.
Why wrong: Cannot modify pre-built canary scripts.
- B
Review the canary's CloudWatch Logs for error details.
Canary logs contain detailed output of each step.
- C
Inspect the Lambda function logs associated with the canary.
Canaries run as Lambda functions; logs contain execution details.
- D
Examine CloudWatch metrics for the canary.
Why wrong: Metrics provide counts but not detailed errors.
- E
Check CloudTrail for CanaryRun API calls.
Why wrong: CloudTrail logs API calls, not execution details.
Question 1,295 of 1,750
DOP-C02 Incident and Event Response Practice Question
This DOP-C02 practice question tests your understanding of incident and event response. 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 company uses Amazon CloudWatch Synthetics canaries to monitor its web application endpoints. The canaries are failing intermittently with 'ClientError' status codes. Which TWO actions should the engineer take to diagnose the issue? (Choose two.)
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
✓
Review the canary's CloudWatch Logs for error details.
Option B is correct because CloudWatch Synthetics canaries automatically log execution details, including errors, to CloudWatch Logs. Reviewing these logs provides specific error information, such as 'ClientError' details. Option C is correct because each canary runs as an AWS Lambda function, and the Lambda function's CloudWatch Logs contain runtime logs, including any exceptions or errors thrown during execution. Option A is incorrect because while adding logging could be a long-term improvement, the question asks for diagnostic actions; the canary already logs to CloudWatch Logs, so modifying the script is not necessary for diagnosis. Option D is incorrect because CloudWatch metrics provide aggregate statistics (e.g., success/failure rates) but not detailed error codes or messages. Option E is incorrect because CloudTrail records API calls to create, start, or stop canaries, not the execution details of individual canary runs.
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.
- ✗
Modify the canary script to add more logging.
Why it's wrong here
Cannot modify pre-built canary scripts.
- ✓
Review the canary's CloudWatch Logs for error details.
Why this is correct
Canary logs contain detailed output of each step.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Inspect the Lambda function logs associated with the canary.
Why this is correct
Canaries run as Lambda functions; logs contain execution details.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Examine CloudWatch metrics for the canary.
Why it's wrong here
Metrics provide counts but not detailed errors.
- ✗
Check CloudTrail for CanaryRun API calls.
Why it's wrong here
CloudTrail logs API calls, not execution details.
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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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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Incident and Event Response — study guide chapter
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Incident and Event Response — This question tests Incident and Event Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Review the canary's CloudWatch Logs for error details. — Option B is correct because CloudWatch Synthetics canaries automatically log execution details, including errors, to CloudWatch Logs. Reviewing these logs provides specific error information, such as 'ClientError' details. Option C is correct because each canary runs as an AWS Lambda function, and the Lambda function's CloudWatch Logs contain runtime logs, including any exceptions or errors thrown during execution. Option A is incorrect because while adding logging could be a long-term improvement, the question asks for diagnostic actions; the canary already logs to CloudWatch Logs, so modifying the script is not necessary for diagnosis. Option D is incorrect because CloudWatch metrics provide aggregate statistics (e.g., success/failure rates) but not detailed error codes or messages. Option E is incorrect because CloudTrail records API calls to create, start, or stop canaries, not the execution details of individual canary runs.
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.
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
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