A user signs up on an application that requires multifactor authentication. The user chooses to register the phone number for the authentication system. Which three items must the user provide in order to authenticate? (Choose three.)

  • IP address
  • OTP
  • password
  • email address
  • account username
  • answer to secret question
Explanation & Hint:

Authenticator applications have become a popular method for multifactor authentication. An authenticator application sends a code called a one-time password (OTP) to the registered phone or email address to access the service. To authenticate, the user must supply their account username and password plus the OTP code.

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