Which of the following is used in addition to a password to implement MFA?

The correct answer is A. Sending a code to the user's phone. Multi-factor authentication (MFA) combines at least two of the following factors: something you know (password), something you have (a phone-generated or SMS-delivered one-time code), and something you are (biometric). Sending a code to the user's phone provides a "something…

Submitted by rohit_dlh· Mar 30, 2026Security

Question

Options

ASending a code to the user's phone
BVerifying the user's date of birth
CPrompting the user to solve a simple math problem
DRequiring the user to enter a PIN

How the community answered

(38 responses)

A
87% (33)
B
3% (1)
C
3% (1)
D
8% (3)

Explanation

Multi-factor authentication (MFA) combines at least two of the following factors: something you know (password), something you have (a phone-generated or SMS-delivered one-time code), and something you are (biometric). Sending a code to the user's phone provides a "something you have" factor in addition to the password.

Topics

#MFA#Authentication factors

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