MD-102 Prepare infrastructure for devices Practice Question
You are troubleshooting a Windows 10 device that fails to enroll in Intune manually via 'Access work or school'. The user receives the error 'We couldn't auto-discover a management endpoint matching the username entered'. What is the most likely cause?
⚠ Common exam trap
Many exam-takers confuse a DNS discovery failure with a connectivity or licensing issue, but the specific wording 'auto-discover a management endpoint' is a direct clue that DNS CNAME resolution is the root cause, not firewall or license problems.
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
✓
The DNS CNAME record for enrollment is missing or incorrect
The error 'We couldn't auto-discover a management endpoint matching the username entered' indicates that the device cannot resolve the user's domain to an Intune MDM server via DNS. This is a classic symptom of a missing or incorrect DNS CNAME record (e.g., 'EnterpriseEnrollment.contoso.com' pointing to 'manage.microsoft.com'), which is required for automatic MDM discovery during manual enrollment. Without this record, the device cannot locate the Intune enrollment endpoint.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The user does not have an Intune license assigned
Why it's wrong here
License issue would cause different error.
- ✓
The DNS CNAME record for enrollment is missing or incorrect
Why this is correct
Auto-discovery requires correct DNS record.
- ✗
The MDM authority is not set to Intune
Why it's wrong here
Would cause different error after discovery.
- ✗
The device firewall is blocking traffic to manage.microsoft.com
Why it's wrong here
Firewall blocks after discovery.
Visual reference
Go deeper
Related to this question
Learn chapter
Introduction to Endpoint Management in Microsoft 365
Key term
MDM
MDM stands for Mobile Device Management, a technology that allows IT administrators to securely manage, monitor, and enforce policies on mobile devices like smartphones and tablets from a central console.
Key term
Windows 10
Windows 10 is a personal computer operating system developed by Microsoft that combines the familiarity of Windows 7 with the modern features of Windows 8, designed to run on a wide range of devices from desktops to tablets.
About these practice questions
Courseiva writes every MD-102 question from scratch — 942 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.