Which statement best describes multi-factor authentication?

Which statement best describes multi-factor authentication?

• A. Multi-Factor Authentication uses a single verification method.
• B. Multi-Factor Authentication uses multiple verification methods to increase security.
• C. MFA stands for Managed File Access.
• D. Multi-Factor Authentication is only used in high-security environments.

Answer: (B)

Multi-factor authentication requires more than one way to verify who you are, which makes it much harder for someone to pose as you. It uses at least two independent factors, typically something you know (like a password), something you have (a code from a device or an app), or something you are (a fingerprint or other biometric). By needing multiple proofs, even if one factor is compromised, access isn’t granted without the other factors. That’s why the statement that best describes MFA is that it uses multiple verification methods to increase security. The other ideas fall short because a single verification method is just single-factor authentication, the acronym reference is incorrect, and MFA isn’t limited to only high-security environments; it’s common in everyday security practices.

Multi-factor authentication requires more than one way to verify who you are, which makes it much harder for someone to pose as you. It uses at least two independent factors, typically something you know (like a password), something you have (a code from a device or an app), or something you are (a fingerprint or other biometric). By needing multiple proofs, even if one factor is compromised, access isn’t granted without the other factors. That’s why the statement that best describes MFA is that it uses multiple verification methods to increase security. The other ideas fall short because a single verification method is just single-factor authentication, the acronym reference is incorrect, and MFA isn’t limited to only high-security environments; it’s common in everyday security practices.