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MS-720 · Question #64

You have a Microsoft 365 tenant that has Modern authentication enabled for an services Multi- factor authentication (MFA) is enforced for all users. You are deploying Microsoft Teams Rooms. The…

The correct answer is D. MFA is unsupported In reams Rooms. Microsoft Teams Rooms devices use a dedicated service account that signs in unattended and automatically, meaning no human is present to respond to an MFA prompt - making MFA fundamentally incompatible with the Teams Rooms sign-in flow. To resolve this, you must exclude the…

Plan and configure Microsoft Teams clients and devices

Question

You have a Microsoft 365 tenant that has Modern authentication enabled for an services Multi- factor authentication (MFA) is enforced for all users. You are deploying Microsoft Teams Rooms. The first time you attempt to sign in to a Teams Rooms, you receive an error message indicating that the device cannot sign in to Teams. You verify that Modern authentication is enabled in Teams Rooms. What prevents you from signing in?

Options

  • AThe Microsoft Authenticates app is not configured for the Teams Rooms account.
  • BThe Teams Rooms account is not licensed for Microsoft intune.
  • CTeams Rooms must be domain joined first.
  • DMFA is unsupported In reams Rooms.

How the community answered

(29 responses)
  • A
    3% (1)
  • B
    7% (2)
  • C
    17% (5)
  • D
    72% (21)

Explanation

Microsoft Teams Rooms devices use a dedicated service account that signs in unattended and automatically, meaning no human is present to respond to an MFA prompt - making MFA fundamentally incompatible with the Teams Rooms sign-in flow. To resolve this, you must exclude the Teams Rooms resource account from MFA enforcement (e.g., via a Conditional Access policy exclusion or a legacy per-user MFA exception).

Why the distractors are wrong:

  • A - The Authenticator app handles interactive MFA for human users; Teams Rooms service accounts don't use it, and configuring it wouldn't help an unattended device.
  • B - Intune licensing governs device management/enrollment, not authentication; it has no bearing on whether sign-in succeeds.
  • C - Teams Rooms supports cloud-only (Azure AD joined) deployments and does not require domain joining.

Memory tip: Think "unattended = no MFA." Any device or service that signs in without a human present (Teams Rooms, shared mailboxes, service accounts) will break when MFA is enforced - always carve out an exception via Conditional Access for those accounts.

Topics

#Microsoft Teams Rooms#Authentication#MFA#Troubleshooting

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