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DOP-C02 Incident and Event Response Practice Question

This DOP-C02 practice question tests your understanding of incident and event response. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 is experiencing an ongoing security incident where an unauthorized user gained access to an AWS access key and is making API calls. The security team needs to immediately stop the unauthorized access and preserve evidence for investigation. Which TWO actions should the team take? (Choose TWO.)

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.

Question 1mediummulti select

Full question →

A
Rotate the access key by creating a new key and updating the application.
Why wrong: A is wrong because rotating does not immediately deactivate the compromised key.
B
Enable CloudTrail logging to capture API calls for forensic analysis.
D is correct because logging is essential for evidence preservation and investigation.
C
Change the IAM policy attached to the user to deny all actions.
Why wrong: E is wrong because changing the policy might not take effect immediately if the key is already authenticated.
D
Contact AWS Support to have the key disabled.
Why wrong: C is wrong because contacting support takes time; immediate action is needed.
E
Delete the compromised access key immediately.
B is correct because deleting the key stops all API calls using that key.

Full breakdown with real-world context →

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

✓

Enable CloudTrail logging to capture API calls for forensic analysis.

Option B is correct because enabling CloudTrail logging captures detailed API call records, including source IP, user agent, and request parameters, which are essential for forensic analysis and understanding the scope of the incident. CloudTrail logs provide immutable evidence that can be stored in S3 with versioning and MFA delete, ensuring the integrity of the investigation data.

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.

✗
Rotate the access key by creating a new key and updating the application.
Why it's wrong here
A is wrong because rotating does not immediately deactivate the compromised key.
✓
Enable CloudTrail logging to capture API calls for forensic analysis.
Why this is correct
D is correct because logging is essential for evidence preservation and investigation.
Clue confirmation
The clue word "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the IAM policy attached to the user to deny all actions.
Why it's wrong here
E is wrong because changing the policy might not take effect immediately if the key is already authenticated.
✗
Contact AWS Support to have the key disabled.
Why it's wrong here
C is wrong because contacting support takes time; immediate action is needed.
✓
Delete the compromised access key immediately.
Why this is correct
B is correct because deleting the key stops all API calls using that key.
Clue confirmation
The clue word "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may think rotating the key (Option A) is sufficient, but rotation does not invalidate the old key immediately—it creates a new key while the old one remains active, which fails to stop the ongoing unauthorized access.

Detailed technical explanation

How to think about this question

When an access key is compromised, the immediate priority is to revoke the key's permissions, which can be done by deleting the key (Option E) or attaching a deny-all policy (though the latter has propagation delays). CloudTrail logging (Option B) should be enabled before any remediation steps to ensure that all API calls made by the attacker are recorded; if logging is enabled after the key is deleted, the attacker's actions may be lost. In practice, the security team should first ensure CloudTrail is logging (or verify it is already enabled), then immediately delete the compromised key to stop the attack, and finally analyze the logs to determine the impact.

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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.

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.

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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: Enable CloudTrail logging to capture API calls for forensic analysis. — Option B is correct because enabling CloudTrail logging captures detailed API call records, including source IP, user agent, and request parameters, which are essential for forensic analysis and understanding the scope of the incident. CloudTrail logs provide immutable evidence that can be stored in S3 with versioning and MFA delete, ensuring the integrity of the investigation data.

What should I do if I get this DOP-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: "immediately / without restart". Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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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.