MS-102 Practice Question 3020
Exam: MS-102
Domain: Deploy and manage a Microsoft 365 tenant
Difficulty: easy
You are reviewing Microsoft Secure Score recommendations. What is the primary security risk associated with keeping legacy authentication protocols (such as POP3 and IMAP4) enabled in Exchange Online?
Answer Options
A
Legacy authentication cannot enforce Multi-Factor Authentication (MFA)
B
Legacy authentication doubles the required bandwidth for mail routing
C
Legacy authentication disables TLS encryption over the wire
D
Legacy authentication forces accounts to possess Global Admin rights
Correct Answer
A: Legacy authentication cannot enforce Multi-Factor Authentication (MFA)
Explanation
Legacy protocols cannot enforce Multi-Factor Authentication (MFA) or modern Conditional Access policies, making them vulnerable to credential stuffing attacks.