- A
Switch to John the Ripper with a brute-force attack
Why wrong: Brute-force is extremely slow for WPA2.
- B
Use Wireshark to analyze the handshake for plaintext hints
Why wrong: Handshakes do not contain plaintext password hints.
- C
Use aircrack-ng with the -r option to apply rules to the wordlist
Rules can mutate words to try common patterns, improving cracking.
- D
Perform a deauthentication attack to force clients to reconnect and capture additional handshakes
Why wrong: More handshakes don't help if the password is not in the dictionary.
Question 224 of 1,000
PT0-002 Tools and Code Analysis Practice Question
This PT0-002 practice question tests your understanding of tools and code analysis. 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.
During a wireless penetration test, a tester captures WPA2 handshakes but finds they are unable to crack the password using a dictionary attack. Which technique could improve the likelihood of cracking the password?
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
✓
Use aircrack-ng with the -r option to apply rules to the wordlist
Option C is correct because using aircrack-ng with the `-r` option applies rule-based mangling to the wordlist, generating password variations (e.g., appending numbers, capitalizing letters) that are more likely to match the actual passphrase. This technique leverages common password patterns that simple dictionary attacks miss, significantly improving cracking success against WPA2 PSK.
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.
- ✗
Switch to John the Ripper with a brute-force attack
Why it's wrong here
Brute-force is extremely slow for WPA2.
- ✗
Use Wireshark to analyze the handshake for plaintext hints
Why it's wrong here
Handshakes do not contain plaintext password hints.
- ✓
Use aircrack-ng with the -r option to apply rules to the wordlist
Why this is correct
Rules can mutate words to try common patterns, improving cracking.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Perform a deauthentication attack to force clients to reconnect and capture additional handshakes
Why it's wrong here
More handshakes don't help if the password is not in the dictionary.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that capturing more handshakes (via deauthentication) improves cracking success, but the trap is that the handshake only provides the nonces and MIC—the PMK is deterministic from the passphrase, so one valid handshake is sufficient for offline cracking.
Detailed technical explanation
How to think about this question
The `-r` option in aircrack-ng leverages the same rule engine as Hashcat's `--rule` flag, applying transformations like `$1 $2 $3` (append digits) or `c` (capitalize first letter) to each wordlist entry. This is effective because WPA2 passphrases often follow predictable patterns (e.g., 'password123'), and rule-based attacks can test millions of mutations per second without brute-forcing the full keyspace. In real-world engagements, this technique cracks 60-80% of WPA2 passwords that simple dictionary attacks miss.
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 analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
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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Tools and Code Analysis — study guide chapter
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FAQ
Questions learners often ask
What does this PT0-002 question test?
Tools and Code Analysis — This question tests Tools and Code Analysis — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use aircrack-ng with the -r option to apply rules to the wordlist — Option C is correct because using aircrack-ng with the `-r` option applies rule-based mangling to the wordlist, generating password variations (e.g., appending numbers, capitalizing letters) that are more likely to match the actual passphrase. This technique leverages common password patterns that simple dictionary attacks miss, significantly improving cracking success against WPA2 PSK.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 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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