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A client requests a penetration test that includes an API endpoint hosted by a third-party vendor. The client does not have a signed agreement with the vendor for testing. What is the most appropriate action for the tester?

Question 1mediummultiple choice
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A client requests a penetration test that includes an API endpoint hosted by a third-party vendor. The client does not have a signed agreement with the vendor for testing. What is the most appropriate action for the tester?

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Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Distractor review

Proceed with testing the API endpoint as requested by the client

Without vendor authorization, testing could constitute unauthorized access, violating computer fraud laws and the tester's ethics.

B

Best answer

Exclude the API endpoint from scope until the client obtains written permission from the vendor

This is the only safe path. Once the vendor provides written consent, the endpoint can be added to the scope legally.

C

Distractor review

Test the API endpoint using only non-intrusive methods

Even non-intrusive testing (e.g., passive analysis) may be considered unauthorized access and could violate terms of service or laws.

D

Distractor review

Include a disclaimer in the report that the tester is not liable for any damages

A disclaimer does not provide legal protection against unauthorized access. Permission is required regardless of disclaimers.

Common exam trap

Common exam trap: authentication is not authorization

Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.

Technical deep dive

How to think about this question

This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.

KKey Concepts to Remember

  • Authentication checks who the user is.
  • Authorization controls what the user is allowed to do after login.
  • Privilege levels affect access to EXEC and configuration commands.
  • AAA, TACACS+ and RADIUS can separate login success from command access.

TExam Day Tips

  • Do not assume successful login means full administrative access.
  • Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
  • Separate login problems from permission problems before choosing the answer.

Related practice questions

Related PT0-002 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

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More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

Question 1

A penetration tester is writing the executive summary for a report. The client's CEO needs to understand the business impact of a critical SQL injection vulnerability. Which of the following should the tester include?

Question 2

A penetration tester has gained a low-privileged shell on a Linux server. During enumeration, the tester discovers a binary with the SUID bit set that belongs to root and is known to have a buffer overflow vulnerability. What is the MOST effective next step to escalate privileges?

Question 3

A penetration tester is performing passive reconnaissance against a target domain. Which of the following resources can be used to gather information about the target without directly sending packets to the target's network? (Select two.) (Choose 2.)

Question 4

A penetration tester has obtained a TGT from a domain controller by cracking the krbtgt hash. Which attack can the tester now perform to gain persistent administrative access to any resource in the domain?

Question 5

A penetration tester is writing the executive summary for the final report. The CEO needs to understand the overall risk level and the business impact of the findings. Which of the following should be included in the executive summary?

Question 6

A penetration tester is writing the executive summary of a penetration test report. Which of the following elements is MOST important to include for a non-technical audience?

FAQ

Questions learners often ask

What does this PT0-002 question test?

Authentication checks who the user is.

What is the correct answer to this question?

The correct answer is: Exclude the API endpoint from scope until the client obtains written permission from the vendor — Testing a third-party system without explicit authorization is unethical and potentially illegal. The tester should insist that the client obtain written permission from the vendor before any testing is performed on that endpoint. Proceeding without permission exposes both the tester and client to legal risk.

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

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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