Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A penetration tester is conducting a vulnerability scan of a web application that uses a custom API framework. The scanner reports several potential SQL injection vulnerabilities, but manual testing confirms they are false positives. The tester suspects the scanner is misinterpreting input validation. Which of the following is the most likely reason for these false positives?
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
The scanner used a payload that was blocked by a Web Application Firewall (WAF) before reaching the application
If a WAF blocks the payload, the scanner would typically get a different response (e.g., 403) and might not flag it as SQL injection; the assumption is the scanner got a response it interpreted as vulnerable.
B
Best answer
The application reflects the injected payload in error messages or response content, causing the scanner to think the injection succeeded
Many scanners check if the payload appears in the response (e.g., error messages containing SQL syntax). If the application echoes back the input without executing it, the scanner may misinterpret this as a successful injection.
C
Distractor review
The scanner used outdated signatures that do not match the custom API's input validation logic
Outdated signatures could lead to missed vulnerabilities (false negatives) rather than false positives; false positives typically arise from response interpretation.
D
Distractor review
The application returns a generic 'Invalid input' message for all types of invalid input, confusing the scanner
Generic error messages might reduce false positives because the scanner cannot distinguish between a blocked injection and a normal error; however, some scanners may still flag based on changes in response length or other heuristics.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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.
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?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: The application reflects the injected payload in error messages or response content, causing the scanner to think the injection succeeded — Vulnerability scanners often rely on pattern matching in responses to identify SQL injection. If the application returns generic error messages or reflects back user input in a way that contains part of the injected payload, the scanner may flag it as vulnerable even though the input is properly sanitized. Understanding the application's behavior helps in tuning the scanner or interpreting results correctly.
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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