312-50V10 · Question #348
What are the three types of authentication?
The correct answer is B. Something you: have, know, are. The three universal authentication factors are something you know, something you have, and something you are - the foundation of multi-factor authentication standards.
Question
What are the three types of authentication?
Options
- ASomething you: know, remember, prove
- BSomething you: have, know, are
- CSomething you: show, prove, are
- DSomething you: show, have, prove
How the community answered
(26 responses)- B92% (24)
- C4% (1)
- D4% (1)
Why each option
The three universal authentication factors are something you know, something you have, and something you are - the foundation of multi-factor authentication standards.
'Remember' is redundant with 'know' and is not a distinct factor, and 'prove' is not a recognized standard authentication category.
The three recognized authentication factors are: something you know (e.g., a password or PIN), something you have (e.g., a smart card, hardware token, or OTP device), and something you are (e.g., a fingerprint, retina scan, or other biometric). These categories are codified in standards such as NIST SP 800-63B and underpin the design of multi-factor authentication systems. Combining two or more of these factors significantly reduces the risk of unauthorized access.
'Show' is not a recognized authentication factor in any standard security framework such as NIST or ISO/IEC 27001.
Both 'show' and 'prove' are informal terms not defined as authentication factor categories in any authoritative security standard.
Concept tested: Three standard authentication factors - know, have, are
Source: https://pages.nist.gov/800-63-3/sp800-63b.html
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