A method of authentication that requires multiple forms of verification.

A method of authentication that requires multiple forms of verification.

• A. Multifactor
• B. Single factor
• C. Two-factor
• D. Hybrid verification

Answer: (A)

This question tests multifactor authentication, which requires more than one verification method from separate categories to grant access. It relies on factors such as something you know (a password), something you have (a hardware token or phone), and something you are (biometrics). Using at least two distinct factors strengthens security because compromising one factor isn’t enough to authenticate. Two-factor authentication is a specific case of this, using exactly two factors, while multifactor can involve two or more. Single-factor authentication uses only one method, which is weaker. Hybrid verification isn’t a standard term in this context. For example, logging in with a password and then approving a push notification or providing a fingerprint are both ways to use multiple factors.

This question tests multifactor authentication, which requires more than one verification method from separate categories to grant access. It relies on factors such as something you know (a password), something you have (a hardware token or phone), and something you are (biometrics). Using at least two distinct factors strengthens security because compromising one factor isn’t enough to authenticate.

Two-factor authentication is a specific case of this, using exactly two factors, while multifactor can involve two or more. Single-factor authentication uses only one method, which is weaker. Hybrid verification isn’t a standard term in this context. For example, logging in with a password and then approving a push notification or providing a fingerprint are both ways to use multiple factors.