SC-900 Describe the capabilities of Microsoft Entra Practice Question
A company uses Microsoft Entra ID and wants to improve its security posture by implementing passwordless authentication. The IT team is evaluating which methods are supported natively in Microsoft Entra ID. Which TWO methods are supported? (Choose two.)
⚠ Common exam trap
The trap here is considering SMS or email codes as passwordless; they are secondary factors or guest sign-in methods, not passwordless authentication for members.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
FIDO2 security keys
Microsoft Entra ID natively supports passwordless authentication methods including the Microsoft Authenticator app and FIDO2 security keys. These methods eliminate the need for a password by using the app or a hardware key for sign-in. SMS codes, security questions, and email one-time passcodes are not passwordless methods for regular users.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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SMS verification codes
Why it's wrong here
SMS verification codes are a form of multi-factor authentication, not passwordless authentication. Users still need to enter a password first, then a code sent via SMS. SMS is not considered a passwordless method because it does not eliminate the password; it is a secondary factor.
- ✓
FIDO2 security keys
Why this is correct
FIDO2 security keys are hardware-based authenticators that support passwordless authentication. They are natively supported in Microsoft Entra ID and provide strong, phishing-resistant authentication. Users can sign in without a password by plugging in the key and providing a PIN or biometric.
- ✓
Microsoft Authenticator app
Why this is correct
The Microsoft Authenticator app supports passwordless sign-in by using phone sign-in or passkeys. Users can authenticate without entering a password, improving security and convenience. It is a native Microsoft Entra passwordless method and is widely deployed.
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Email one-time passcode
Why it's wrong here
Email one-time passcode is used for B2B collaboration guest sign-in, not for passwordless authentication for regular users. It sends a code to the user's email, but the user still needs to have an email account and it is not a passwordless method for members. It is not a native passwordless method for employees.
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Security questions
Why it's wrong here
Security questions are used for self-service password reset as a verification method, but they do not enable passwordless authentication. They are knowledge-based and often weak. They do not replace the password for sign-in; they only help reset it.
Go deeper
Related to this question
Learn chapter
SAML and Single Sign-On (SSO)
Key term
Security posture
An organization's overall cybersecurity strength, including policies, controls, and readiness to defend against and respond to threats.
Key term
Authentication
Authentication is the process of verifying that someone or something is who or what it claims to be before granting access to a system or resource.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.