SC-300 Certification Practice Question #179

Question

You have a Microsoft 365 tenant.

All users have mobile phones and Windows 11 laptops.

The users frequently work from remote locations that do not have Wi-Fi access or mobile phone connectivity. While working from the remote locations, the users connect their laptop to a wired network that has internet access.

You plan to implement multi-factor authentication (MFA).

Which MFA authentication method can the users use from the remote location?

Accepted Answer

The defining constraint is the remote location: no Wi-Fi, no mobile phone connectivity, only a wired internet connection on the Windows 11 laptop. Any method that depends on a phone signal is eliminated — that removes voice call (needs a phone network) and app password (a legacy mechanism tied to phone/app MFA enrollment). MS Learn lists Windows Hello for Business as a Microsoft Entra MFA method that is device-bound: the credential lives in the laptop's TPM and is unlocked locally by a PIN or biometric, then validated by Entra over the laptop's own internet connection — no phone, SMS, voice, or mobile app required. That exactly fits "from the remote location." The recorded "Most Voted: A (2 votes)" is misleading: both contributors selected the A box but their text states the answer is B, so the human signal actually points to B. Confidence is held at 80% because the on-page tally and the commenters' selection boxes superficially say A, even though their reasoning and MS Learn both point to B.

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