SC-900 Describe the capabilities of Microsoft Entra Practice Question
This SC-900 practice question tests your understanding of describe the capabilities of microsoft entra. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
Your organization uses Microsoft Entra ID for identity management. You need to enable users to sign in using a QR code from the Microsoft Authenticator app. Which Microsoft Entra feature should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Passwordless sign-in with Microsoft Authenticator
The Microsoft Authenticator app supports passwordless sign-in by allowing users to approve a notification or scan a QR code from the sign-in screen. This feature eliminates the need for a password and relies on the Authenticator app as a primary authentication method, which is configured under the Passwordless sign-in with Microsoft Authenticator option in Entra ID.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
FIDO2 security keys
Why it's wrong here
FIDO2 keys are hardware-based and do not involve QR codes.
✗
Temporary Access Pass
Why it's wrong here
TAP is a time-limited passcode for passwordless onboarding, not QR code sign-in.
✓
Passwordless sign-in with Microsoft Authenticator
Why this is correct
Passwordless sign-in with Authenticator uses QR codes or number match for sign-in.
Related concept
Read the scenario before looking for a memorised answer.
✗
My Security-info (https://aka.ms/mysecurityinfo)
Why it's wrong here
This is a user portal for managing security info, not a feature for QR code sign-in.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the QR code scanning capability of the Authenticator app with FIDO2 security keys, but the question specifically asks about using the Microsoft Authenticator app, not a separate hardware device.
Detailed technical explanation
How to think about this question
Passwordless sign-in with Microsoft Authenticator uses the FIDO2 standard for device-bound credentials, but the QR code flow specifically leverages the Authenticator app's ability to perform a challenge-response handshake with Entra ID via the WebAuthn protocol. In a real-world scenario, a user scans a QR code displayed on the sign-in page, which triggers a cryptographic assertion from the app, verifying possession of the private key without transmitting a password over the network.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
Describe the capabilities of Microsoft Entra — This question tests Describe the capabilities of Microsoft Entra — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Passwordless sign-in with Microsoft Authenticator — The Microsoft Authenticator app supports passwordless sign-in by allowing users to approve a notification or scan a QR code from the sign-in screen. This feature eliminates the need for a password and relies on the Authenticator app as a primary authentication method, which is configured under the Passwordless sign-in with Microsoft Authenticator option in Entra ID.
What should I do if I get this SC-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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