CompTIA
PT0-001 · Question #78
PT0-001 Question #78: Real Exam Question with Answer & Explanation
The correct answer is C: NTLM. A 32-character hexadecimal string is the characteristic format of an NTLM hash, which uses the MD4 algorithm to produce a 128-bit output.
Question
If a security consultant comes across a password hash that resembles the following: b117525b345470c29ca3d8ac0b556ba8 Which of the following formats is the correct hash type?
Options
- AKerberos
- BNetNTLMvl
- CNTLM
- DSHA-1
Explanation
A 32-character hexadecimal string is the characteristic format of an NTLM hash, which uses the MD4 algorithm to produce a 128-bit output.
Common mistakes.
- A. Kerberos uses ticket-based authentication and does not produce simple standalone 32-character hex hashes in this format.
- B. NetNTLMv1 is a challenge-response authentication protocol format that includes additional fields such as username, challenge, and response - it is not a standalone 32-character hex string.
- D. SHA-1 produces a 40-character hexadecimal string representing a 160-bit output, which is longer than the 32-character hash shown in the question.
Concept tested. Identifying NTLM password hash by format
Reference. https://learn.microsoft.com/en-us/windows-server/security/kerberos/passwords-technical-overview
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