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A client hires a penetration testing firm to assess a web application that integrates with a third-party API for payment processing. The client wants to include the API endpoint in the test scope. What should the penetration tester do FIRST to ensure the test is conducted ethically and legally?

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A client hires a penetration testing firm to assess a web application that integrates with a third-party API for payment processing. The client wants to include the API endpoint in the test scope. What should the penetration tester do FIRST to ensure the test is conducted ethically and legally?

Full question →

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

Assume the client has already obtained permission from the API provider

Assumptions can lead to legal violations; written proof from the provider is required.

B

Best answer

Obtain written authorization from the third-party API provider

Formal permission from the API owner is necessary to avoid legal repercussions.

C

Distractor review

Rely on the client's statement that the API is within scope

The client cannot grant permission for a third party's infrastructure.

D

Distractor review

Test only the client's application code and ignore the API

This would not fulfill the client's request to include the API in the test.

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

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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: Obtain written authorization from the third-party API provider — The tester must obtain explicit written permission from the API owner before testing. Testing without authorization could violate laws and the API's terms of service. Assuming permission, relying on the client's statement alone, or testing only the client's part are insufficient and could lead to legal issues.

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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