The answer is to use the Wayback Machine to view cached historical pages. This technique is the best example of passive reconnaissance for CMS identification because it retrieves archived snapshots of the website without generating any live traffic to the target server, allowing you to analyze the site’s structure, plugins, and content management system from past data. On the CompTIA PenTest+ PT0-002 exam, this question tests your ability to distinguish passive from active reconnaissance, with a common trap being the “view page source” option—while it seems harmless, it still requires an active HTTP request that could be logged by the hosting provider. Remember the memory tip: if it touches the live server, it’s active; the Wayback Machine is your time machine for stealthy recon.
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 hired to perform a security assessment of a small business. The business has a single website hosted on a shared server, and the tester wants to identify the content management system (CMS) and plugins used without sending any traffic that might alert the hosting provider. The tester has no previous knowledge of the website. Which of the following techniques would be BEST for this task?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the Wayback Machine to view cached historical pages
Option A is correct because the Wayback Machine provides historical snapshots of the website without sending any current traffic. Option B (full port scan) is active and likely to be detected. Option C (vulnerability scanner) actively probes the server. Option D (view page source) requires making an HTTP request, which is active traffic.
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.
✗
Perform a full TCP port scan with nmap on the server's IP
Why it's wrong here
Active port scanning may alert the hosting provider.
✓
Use the Wayback Machine to view cached historical pages
Why this is correct
Wayback Machine archives are passive; no traffic is sent to the target.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the 'view page source' feature after browsing the site normally
Why it's wrong here
Browsing the site sends an HTTP request, which is active.
✗
Submit the website URL to a vulnerability scanner like OpenVAS
Why it's wrong here
Vulnerability scanning sends probe traffic and is not passive.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PT0-002 question in full detail.
Identify which PT0-002 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Use the Wayback Machine to view cached historical pages — Option A is correct because the Wayback Machine provides historical snapshots of the website without sending any current traffic. Option B (full port scan) is active and likely to be detected. Option C (vulnerability scanner) actively probes the server. Option D (view page source) requires making an HTTP request, which is active traffic.
What should I do if I get this PT0-002 question wrong?
Identify which PT0-002 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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