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MD-102 Practice Question: An administrator is deploying Windows 11 using…
An administrator is deploying Windows 11 using Configuration Manager. The task sequence fails on some devices during the 'Apply Operating System' step with a notice that the image file is not valid. All other devices succeed. What is the most likely cause?
⚠ Common exam trap
It's easy for candidates to assume a distribution point or boot image problem because those are common causes of task sequence failures, but the 'some devices succeed' clue points to a client-specific corruption rather than a global infrastructure issue.
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 OS image download was corrupted on the client.
A corrupted OS image download on the client will cause the 'Apply Operating System' step to fail with an 'image file is not valid' error. Since the issue occurs only on some devices, a per-client download corruption (e.g., due to network interruption or disk I/O errors during BITS transfer) is the most likely cause, while the image itself remains valid on the distribution point.
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 boot image is not compatible with the device firmware.
Why it's wrong here
Boot image issue would prevent starting the task sequence.
- ✗
The distribution point is out of disk space.
Why it's wrong here
Would affect many devices, not just a few.
- ✗
The task sequence variable OSDPackagePath is missing.
Why it's wrong here
Would affect all devices similarly.
- ✓
The OS image download was corrupted on the client.
Why this is correct
Corrupted download causes invalid image error on specific clients.
Go deeper
Related to this question
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Enrolling Devices with Microsoft Intune
Key term
Windows 11
Windows 11 is Microsoft's latest desktop operating system, offering a redesigned interface, enhanced security features, and improved support for modern hardware.
Key term
Configuration Manager
Configuration Manager is a systems management tool by Microsoft that helps IT administrators deploy software, enforce security policies, and manage devices across an organization.
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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.