SC-900 Describe the capabilities of Microsoft Entra Practice Question
A company's security team discovers that several recent account compromises originated from attackers using legacy mail protocols (POP3, IMAP) which do not support multi-factor authentication. The team wants to immediately prevent any sign-in attempts using these protocols. Which Microsoft Entra ID feature should they configure to enforce this restriction?
⚠ Common exam trap
Candidates often confuse Identity Protection's risk-based policies with the ability to block legacy protocols, but Identity Protection only triggers MFA or block based on risk scores, not on the protocol type itself.
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
✓
Conditional Access
Conditional Access in Microsoft Entra ID allows administrators to create policies that control access based on conditions such as client apps. By configuring a policy to block authentication requests from legacy authentication protocols (POP3, IMAP, SMTP, etc.), the security team can immediately prevent sign-in attempts that do not support multi-factor authentication, effectively mitigating the risk of account compromise via these outdated protocols.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Conditional Access
Why this is correct
Conditional Access policies provide the precise control needed to block legacy authentication by evaluating various conditions, including the client application used for access. Administrators can configure a policy to specifically target and block client apps that utilize legacy authentication protocols, such as Exchange ActiveSync or 'Other clients' (which often encompasses protocols like POP3, IMAP, and SMTP AUTH). This ensures that only modern authentication methods, which support features like multi-factor authentication, are permitted for accessing corporate resources.
- ✗
Identity Protection
Why it's wrong here
Microsoft Entra Identity Protection is designed to detect, investigate, and remediate identity-based risks by identifying risky sign-ins and risky users based on various signals and heuristics. Although it can enforce actions like MFA or password resets in response to detected risks, it does not offer direct policy configuration to block specific authentication protocols like legacy authentication. Its role is reactive to risk, not proactive in protocol enforcement.
When this WOULD be correct
When the question asks for a feature that automatically detects and responds to compromised accounts or risky sign-ins (e.g., requiring MFA or password reset based on risk level), Identity Protection is the correct answer.
- ✗
Privileged Identity Management (PIM)
Why it's wrong here
Microsoft Entra Privileged Identity Management (PIM) is a service focused on managing, controlling, and monitoring access to important resources by providing just-in-time (JIT) and just-enough-access (JEA) for privileged roles. Its core function is to reduce the exposure time of privileged accounts and provide auditing capabilities for their usage. PIM is entirely unrelated to defining or enforcing which authentication protocols are permitted for general user access or client applications.
When this WOULD be correct
A question asks: 'The security team needs to reduce standing administrative access and require approval for role activation in Microsoft Entra ID. Which feature should they use?' — PIM would be the correct answer.
- ✗
Microsoft Entra Password Protection
Why it's wrong here
Microsoft Entra Password Protection is a security feature primarily focused on preventing users from creating or using weak, easily guessable passwords, including both globally banned and custom banned terms. While essential for strengthening credential security, its functionality is limited to password policies and does not extend to controlling or blocking specific authentication protocols that client applications use to connect to Microsoft Entra ID. Therefore, it cannot enforce the restriction against legacy authentication.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The SC-900 exam frequently reuses these exact scenarios with slightly different constraints.
✓Conditional AccessCorrect answer▾
Why this is correct
Conditional Access policies provide the precise control needed to block legacy authentication by evaluating various conditions, including the client application used for access. Administrators can configure a policy to specifically target and block client apps that utilize legacy authentication protocols, such as Exchange ActiveSync or 'Other clients' (which often encompasses protocols like POP3, IMAP, and SMTP AUTH). This ensures that only modern authentication methods, which support features like multi-factor authentication, are permitted for accessing corporate resources.
✗Identity ProtectionWrong answer — click to see why▾
Why this is wrong here
Identity Protection detects and remediates risks but does not block legacy authentication protocols directly; it requires Conditional Access policies to enforce such blocks.
★ When this WOULD be the correct answer
When the question asks for a feature that automatically detects and responds to compromised accounts or risky sign-ins (e.g., requiring MFA or password reset based on risk level), Identity Protection is the correct answer.
Why candidates choose this
Candidates may confuse Identity Protection's risk-based policies with the ability to block specific authentication methods, not realizing that Conditional Access is needed to enforce protocol-level restrictions.
✗Privileged Identity Management (PIM)Wrong answer — click to see why▾
Why this is wrong here
Privileged Identity Management (PIM) manages just-in-time privileged access and role activation, not authentication protocol restrictions. It cannot block legacy mail protocols like POP3/IMAP.
★ When this WOULD be the correct answer
A question asks: 'The security team needs to reduce standing administrative access and require approval for role activation in Microsoft Entra ID. Which feature should they use?' — PIM would be the correct answer.
Why candidates choose this
Candidates may confuse PIM's role-based access controls with broader security policies, assuming it can enforce authentication restrictions because it manages privileged accounts.
Analysis generated from the official SC-900blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Go deeper
Related to this question
Learn chapter
Core Security Concepts
Key term
Security
Security in IT is the practice of protecting systems, networks, and data from unauthorized access, damage, or theft.
Key term
Policy
A policy is a set of rules or guidelines that defines how an organization manages, secures, and operates its IT systems and services.
About these practice questions
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.