Your organization uses Microsoft Entra ID for identity management. You need to ensure that users can sign in using a one-time passcode sent to their mobile device, without requiring any additional app or software installation. Which authentication method should you enable?
Trap 1: Microsoft Authenticator app
Requires app installation.
Trap 2: FIDO2 security keys
Requires hardware keys.
Trap 3: Certificate-based authentication
Requires certificate deployment.
- A
One-time passcode (OTP)
Built-in feature sending passcode via SMS or email.
- B
Microsoft Authenticator app
Why wrong: Requires app installation.
- C
FIDO2 security keys
Why wrong: Requires hardware keys.
- D
Certificate-based authentication
Why wrong: Requires certificate deployment.