Question 14 of 509

Planning and Scoping →mediumMultiple ChoiceObjective-mapped

PT0-002 Planning and Scoping Practice Question

This PT0-002 practice question tests your understanding of planning and scoping. 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 client engages a penetration testing firm to evaluate the security of their internal network. During the scoping meeting, the client states that they use a network access control (NAC) solution that might block the tester's machine if it is connected to the internal network without prior authorization. Which of the following should be included in the rules of engagement to address this potential issue?

Question 1mediummultiple choice

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A
Include a requirement that the client disables NAC during the testing window.
Why wrong: Disabling NAC globally would change the security posture and potentially allow other unauthorized devices onto the network, which is not a reasonable request.
B
State that the tester will not connect to the internal network and will only test externally.
Why wrong: The client requested an internal network test; testing externally would not fulfill the project scope.
C
Specify that the tester will bypass NAC as part of the test objectives.
Why wrong: Bypassing NAC could be a test goal, but the immediate operational issue is that the tester's device may be blocked. The ROE should address access, not add an unexpected objective.
D
Add a clause requiring the client to whitelist the tester's MAC address in the NAC policy before testing.
Whitelisting the tester's MAC address allows the NAC to recognize the testing device as authorized, preventing service disruption without weakening overall security.

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

✓

Add a clause requiring the client to whitelist the tester's MAC address in the NAC policy before testing.

Option D is correct because whitelisting the tester's MAC address in the NAC policy allows the tester's machine to connect to the internal network without being blocked, while keeping the NAC solution active for other devices. This approach preserves the real-world security posture of the client's environment and ensures the tester can perform internal network assessments as scoped. It is a standard practice in penetration testing to request MAC address whitelisting to avoid false positives from NAC enforcement.

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.

✗
Include a requirement that the client disables NAC during the testing window.
Why it's wrong here
Disabling NAC globally would change the security posture and potentially allow other unauthorized devices onto the network, which is not a reasonable request.
✗
State that the tester will not connect to the internal network and will only test externally.
Why it's wrong here
The client requested an internal network test; testing externally would not fulfill the project scope.
✗
Specify that the tester will bypass NAC as part of the test objectives.
Why it's wrong here
Bypassing NAC could be a test goal, but the immediate operational issue is that the tester's device may be blocked. The ROE should address access, not add an unexpected objective.
✓
Add a clause requiring the client to whitelist the tester's MAC address in the NAC policy before testing.
Why this is correct
Whitelisting the tester's MAC address allows the NAC to recognize the testing device as authorized, preventing service disruption without weakening overall security.
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 assume disabling NAC (Option A) is the simplest solution, but the exam tests whether you understand that altering security controls during a test can invalidate the assessment's realism and that proper scoping requires minimal disruption to the client's environment.

Detailed technical explanation

How to think about this question

Network Access Control (NAC) solutions, such as Cisco ISE or Aruba ClearPass, typically enforce policies based on MAC addresses, 802.1X authentication, or posture assessments. Whitelisting the tester's MAC address in the NAC policy ensures that the tester's machine is placed in an authorized endpoint group, bypassing authentication and posture checks while still allowing the NAC to enforce policies on other devices. This approach is often documented in the rules of engagement as a 'MAC address bypass' or 'pre-authentication exemption' to facilitate testing without compromising the overall security controls.

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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.

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 PT0-002 question test?

Planning and Scoping — This question tests Planning and Scoping — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Add a clause requiring the client to whitelist the tester's MAC address in the NAC policy before testing. — Option D is correct because whitelisting the tester's MAC address in the NAC policy allows the tester's machine to connect to the internal network without being blocked, while keeping the NAC solution active for other devices. This approach preserves the real-world security posture of the client's environment and ensures the tester can perform internal network assessments as scoped. It is a standard practice in penetration testing to request MAC address whitelisting to avoid false positives from NAC enforcement.

What should I do if I get this PT0-002 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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