This MS-900 practice question tests your understanding of describe security, compliance, privacy, and trust in microsoft 365. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: mFA requires two or more verification methods for sign-in.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A help desk lead is documenting the correct Microsoft 365 approach to require users to approve sign-ins with a mobile app after entering a password. Microsoft security, identity, or compliance capability should it use?
Microsoft Planner
Why wrong: Planner manages tasks and does not provide this security or compliance control.
Multifactor authentication (MFA)
MFA requires more than one verification factor and reduces risk from stolen passwords.
Microsoft Forms
Why wrong: Forms creates surveys and quizzes, not this security or compliance capability.
Microsoft Stream
Why wrong: Stream hosts video content and does not meet this requirement.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Multifactor authentication (MFA)
Multifactor authentication (MFA) is the correct capability because it requires users to provide a second form of verification—such as approving a sign-in via the Microsoft Authenticator mobile app—after entering their password. This aligns with the security best practice of 'something you know' (password) plus 'something you have' (mobile device approval), which is a core MFA scenario in Microsoft Entra ID (formerly Azure AD).
Key principle: MFA requires two or more verification methods for sign-in.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Planner
Why it's wrong here
Planner manages tasks and does not provide this security or compliance control.
Multifactor authentication (MFA)
Microsoft Forms
Why it's wrong here
Forms creates surveys and quizzes, not this security or compliance capability.
Microsoft Stream
Why it's wrong here
Stream hosts video content and does not meet this requirement.
Common exam traps
The trap here is that candidates may confuse productivity tools (Planner, Forms, Stream) with security capabilities, mistakenly thinking any Microsoft 365 app can enforce authentication policies, when only identity and access management services like MFA in Microsoft Entra ID can do so.
Detailed technical explanation
Under the hood, Microsoft Entra ID Conditional Access policies can enforce MFA using the 'Require multifactor authentication' grant control, which triggers a notification to the Microsoft Authenticator app via the OAuth 2.0 device authorization grant flow or the WebAuthn standard for passwordless scenarios. In a real-world deployment, an administrator would create a Conditional Access policy targeting all cloud apps, set the grant control to 'Require multifactor authentication', and configure the authentication methods policy to allow 'Microsoft Authenticator' as an OATH software token or push notification method.
Key takeaway
MFA requires two or more verification methods for sign-in.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Review mFA requires two or more verification methods for sign-in., then practise related MS-900 questions on the same topic to reinforce the concept.
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FAQ
Describe security, compliance, privacy, and trust in Microsoft 365 — This question tests Describe security, compliance, privacy, and trust in Microsoft 365 — MFA requires two or more verification methods for sign-in..
The correct answer is: Multifactor authentication (MFA) — Multifactor authentication (MFA) is the correct capability because it requires users to provide a second form of verification—such as approving a sign-in via the Microsoft Authenticator mobile app—after entering their password. This aligns with the security best practice of 'something you know' (password) plus 'something you have' (mobile device approval), which is a core MFA scenario in Microsoft Entra ID (formerly Azure AD).
Review mFA requires two or more verification methods for sign-in., then practise related MS-900 questions on the same topic to reinforce the concept.
MFA requires two or more verification methods for sign-in.
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Last reviewed: Jun 11, 2026
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