MD-102 Manage and maintain devices Practice Question
You manage Windows 10 devices with Microsoft Intune. Users report that after a recent Windows update, some devices fail to enroll in mobile device management (MDM). You verify that the devices are domain-joined and can reach the internet. Which configuration should you check first?
⚠ Common exam trap
A common mix-up: candidates assume a general internet connection means all services are reachable, but MDM enrollment requires specific URLs that may be blocked by a proxy or firewall even when general browsing works.
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
✓
Check that the MDM enrollment URL (https://enrollment.manage.microsoft.com) is reachable and not blocked by a proxy.
The most common cause of MDM enrollment failure after a Windows update is a change in proxy or firewall settings that blocks the MDM enrollment URL. Since the devices can reach the internet generally but fail specifically during enrollment, verifying that `https://enrollment.manage.microsoft.com` is reachable and not blocked by a proxy is the logical first troubleshooting step. This URL is required for the device to communicate with the Intune MDM service during the enrollment process.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Confirm that the user is assigned a Microsoft Entra ID P1 license.
Why it's wrong here
License assignment alone does not prevent enrollment if the URL is unreachable.
- ✗
Verify that the BitLocker recovery key is backed up to Microsoft Entra ID.
Why it's wrong here
BitLocker recovery is unrelated to MDM enrollment.
- ✗
Ensure the Windows Defender Firewall allows inbound RPC traffic.
Why it's wrong here
Firewall rules for RPC are not required for MDM enrollment.
- ✓
Check that the MDM enrollment URL (https://enrollment.manage.microsoft.com) is reachable and not blocked by a proxy.
Why this is correct
The enrollment URL must be reachable for successful MDM enrollment.
Go deeper
Related to this question
Learn chapter
Introduction to Endpoint Management in Microsoft 365
Key term
Mobile device management
Mobile device management (MDM) is a security solution that allows IT administrators to enroll, configure, monitor, and enforce policies on smartphones, tablets, and other mobile devices used in an organization.
Key term
Microsoft Intune
Microsoft Intune is a cloud-based service that helps organizations manage employee devices, apps, and security policies without needing to own or control the physical hardware.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MD-102 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 MD-102 exam.