- A
The scanner used a different HTTP method than the one used in manual testing
Why wrong: While HTTP method can affect behavior, the scenario indicates the same payload was used; the scanner typically tests common methods. This is not the most likely cause.
- B
The scanner's payloads were URL-encoded differently
Why wrong: If the same payload was used in manual testing, encoding should be consistent. Even if encoded differently, modern browsers and tools automatically handle encoding.
- C
The vulnerability exists only in the scanner's simulated environment
Why wrong: Scanners test the live application, not a simulated environment. This answer is incorrect.
- D
The scanner might have generated a false positive due to a misinterpretation of the server's response
False positives are common in automated scanners. The scanner may have incorrectly flagged a response as vulnerable when manual testing proves otherwise.
PT0-002 Practice Question: Information Gathering and Vulnerability Scanning
This PT0-002 practice question tests your understanding of information gathering and vulnerability scanning. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 penetration tester is using a vulnerability scanner to assess a web application. The scanner reports a 'SQL Injection' finding with a high confidence level. However, manual verification of the same payload does not trigger the vulnerability in a browser. Which of the following is the most likely reason for this discrepancy?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
The scanner might have generated a false positive due to a misinterpretation of the server's response
The most likely reason is that the scanner generated a false positive due to a misinterpretation of the server's response. Vulnerability scanners often infer SQL injection based on response patterns (e.g., database error messages, timing differences) that may not actually be exploitable. Manual verification in a browser failed because the payload did not produce a true SQL error or data leak, confirming the scanner's alert was incorrect.
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.
- ✗
The scanner used a different HTTP method than the one used in manual testing
Why it's wrong here
While HTTP method can affect behavior, the scenario indicates the same payload was used; the scanner typically tests common methods. This is not the most likely cause.
- ✗
The scanner's payloads were URL-encoded differently
Why it's wrong here
If the same payload was used in manual testing, encoding should be consistent. Even if encoded differently, modern browsers and tools automatically handle encoding.
- ✗
The vulnerability exists only in the scanner's simulated environment
Why it's wrong here
Scanners test the live application, not a simulated environment. This answer is incorrect.
- ✓
The scanner might have generated a false positive due to a misinterpretation of the server's response
Why this is correct
False positives are common in automated scanners. The scanner may have incorrectly flagged a response as vulnerable when manual testing proves otherwise.
Clue confirmation
The clue word "most likely" 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
CompTIA often tests the concept that automated scanners can produce false positives due to response misinterpretation, and candidates mistakenly choose option C (simulated environment) because they confuse the scanner's internal test logic with an actual isolated environment.
Trap categories for this question
Scenario analysis trap
While HTTP method can affect behavior, the scenario indicates the same payload was used; the scanner typically tests common methods. This is not the most likely cause.
Detailed technical explanation
How to think about this question
False positives in vulnerability scanners often arise from heuristic detection logic that flags generic error messages (e.g., 'You have an error in your SQL syntax') as SQL injection, even when the error is from a different cause like malformed input parsing. In real-world scenarios, a scanner might also misinterpret a 500 Internal Server Error triggered by a payload that causes an application-level exception (not a database error) as SQL injection. Manual verification with the same payload in a browser reveals the true behavior because the browser does not apply the scanner's inference rules.
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 team runs a vulnerability scan on a web application and discovers an unpatched SQL injection flaw. The team prioritises remediation by CVSS score — critical flaws are patched within 24 hours, high within 7 days. Questions like this test whether you understand vulnerability management processes, scanning tools, and remediation prioritisation.
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?
Information Gathering and Vulnerability Scanning — This question tests Information Gathering and Vulnerability Scanning — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The scanner might have generated a false positive due to a misinterpretation of the server's response — The most likely reason is that the scanner generated a false positive due to a misinterpretation of the server's response. Vulnerability scanners often infer SQL injection based on response patterns (e.g., database error messages, timing differences) that may not actually be exploitable. Manual verification in a browser failed because the payload did not produce a true SQL error or data leak, confirming the scanner's alert was incorrect.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 30, 2026
This PT0-002 practice question is part of Courseiva's free CompTIA 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 PT0-002 exam.
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