This DOP-C02 practice question tests your understanding of monitoring and logging. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Network Topology
Refer to the exhibit. A DevOps engineer runs the CloudWatch Logs Insights query and sees a spike in errors at 12:00. Which action would best help identify the root cause?
Network Topology
A
Add a filter for @logStream to see which log stream has the most errors.
Why wrong: This could help identify which component is failing, but not the root cause of the error.
B
Increase the limit to 100 to see more results.
Why wrong: The limit affects the number of time bins returned, not the underlying messages. The spike is already visible.
C
Query the logs around 12:00 without aggregation to see the actual error messages.
Viewing the raw error messages will reveal the cause of the spike, such as a specific exception or error code.
D
Change the bin time to 1m to get more granular data.
Why wrong: While more granularity might help, the spike is already visible. The key is to see the error messages.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Query the logs around 12:00 without aggregation to see the actual error messages.
The query shows a sudden spike at 12:00. To identify the root cause, the engineer should look at the error messages themselves around that time. Filtering by @timestamp and @message to see the actual error messages will help identify the type of error. Adding a filter for a specific error pattern or grouping by error message would also help.
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.
✗
Add a filter for @logStream to see which log stream has the most errors.
Why it's wrong here
This could help identify which component is failing, but not the root cause of the error.
✗
Increase the limit to 100 to see more results.
Why it's wrong here
The limit affects the number of time bins returned, not the underlying messages. The spike is already visible.
✓
Query the logs around 12:00 without aggregation to see the actual error messages.
Why this is correct
Viewing the raw error messages will reveal the cause of the spike, such as a specific exception or error code.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the bin time to 1m to get more granular data.
Why it's wrong here
While more granularity might help, the spike is already visible. The key is to see the error messages.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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.
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: Query the logs around 12:00 without aggregation to see the actual error messages. — The query shows a sudden spike at 12:00. To identify the root cause, the engineer should look at the error messages themselves around that time. Filtering by @timestamp and @message to see the actual error messages will help identify the type of error. Adding a filter for a specific error pattern or grouping by error message would also help.
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.
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Question Discussion
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