MD-102 Manage and maintain devices Practice Question
Exhibit
{
"@odata.type": "#microsoft.graph.windowsUpdateForBusinessConfiguration",
"updateClassification": "all",
"automaticUpdateMode": "autoInstallAndRebootWithEndUserControl",
"businessReadyUpdatesOnly": "all",
"featureUpdateDeferralPeriodInDays": 30,
"qualityUpdateDeferralPeriodInDays": 7
}Refer to the exhibit. The JSON snippet shows a Windows Update for Business policy assigned to a device group. Users report that quality updates are installed 7 days after release. Which setting controls this behavior?
⚠ Common exam trap
Test-takers frequently confuse `featureUpdateDeferralPeriodInDays` with quality update deferral, assuming all deferral settings work the same way, but they are separate policies for different update types.
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
✓
qualityUpdateDeferralPeriodInDays
The setting `qualityUpdateDeferralPeriodInDays` controls how long quality updates (security fixes) are deferred after release. A value of 7 means updates are installed 7 days post-release, matching the user report. This is a Windows Update for Business policy configured via CSP (Policy CSP - Update).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
featureUpdateDeferralPeriodInDays
Why it's wrong here
featureUpdateDeferralPeriodInDays postpones feature updates, which deliver new Windows versions, not the monthly quality updates users are waiting on. It is tempting because deferral settings look identical in name and structure, and this one would be the right answer if the stem described devices receiving a new Windows build seven days late.
- ✗
businessReadyUpdatesOnly
Why it's wrong here
businessReadyUpdatesOnly restricts devices to the General Deployment Phase, but the 7-day delay comes from the deferral setting (qualityUpdatesDeferralPeriodInDays), not this toggle. It is tempting because it governs update readiness, and would be correct when you need to block devices from receiving updates during the Initial Deployment Phase.
- ✓
qualityUpdateDeferralPeriodInDays
Why this is correct
qualityUpdateDeferralPeriodInDays directly governs how long devices wait before installing quality updates, so a value of 7 produces exactly the reported seven-day delay. The other deferral settings apply to different update categories, such as feature or driver updates, and therefore cannot satisfy this scenario's stated behaviour.
- ✗
automaticUpdateMode
Why it's wrong here
automaticUpdateMode governs the update installation behaviour itself — such as notifying for restart or auto-installing outside active hours — not the deferral interval. It is tempting because it shapes how updates are applied, and it would be the right choice if the question asked about installation or restart conduct rather than the seven-day delay.
Visual reference
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Related to this question
Learn chapter
Managing Microsoft 365 Apps and Office Updates
Key term
Device group
A device group is a logical collection of devices managed together for applying policies, configurations, and updates in an enterprise IT environment.
Key term
Windows Update for Business
Windows Update for Business is a set of policies and settings that IT administrators use to manage and control how Windows devices receive updates from Microsoft, allowing for staged rollouts and deferrals while ensuring security patches are applied.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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