MS-900 Describe Microsoft 365 apps and services Practice Question
An enterprise wants to allow employees to access corporate resources (emails, files, intranet) from unmanaged personal devices while ensuring that corporate data cannot be copied to personal apps. Which Microsoft 365 technology should be configured?
⚠ Common exam trap
Many candidates confuse MDM (device-level management) with MAM (app-level management), assuming that any data protection requires full device enrollment, when MAM provides the exact capability needed for unmanaged devices.
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
✓
Microsoft Intune Mobile Application Management (MAM)
Microsoft Intune Mobile Application Management (MAM) allows administrators to apply data protection policies directly to applications, such as Outlook and SharePoint, without enrolling the device itself. This enables employees to access corporate resources from unmanaged personal devices while preventing data from being copied or transferred to personal apps through features like multi-identity management and app-level PIN policies.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Microsoft Intune Mobile Device Management (MDM)
Why it's wrong here
Enrolling a personal phone into Microsoft Intune MDM grants the organization broader control over the entire device, including personal apps, hardware settings, and location, which is often unacceptable for BYOD usage. MDM can secure email access through device compliance checks and Conditional Access, but it does not isolate corporate data within individual apps or prevent data leakage between corporate and personal contexts.
- ✓
Microsoft Intune Mobile Application Management (MAM)
Why this is correct
Microsoft Intune MAM allows administrators to apply data protection policies directly to apps such as Outlook, without requiring the user's device to be enrolled. These policies can restrict copy/paste, screen capture, and data saving to personal cloud services, while also enforcing an app-level PIN or managed access to corporate email. This provides a granular separation between corporate and personal data, making it ideal for allowing employees to access corporate resources on their personal devices.
- ✗
Microsoft Entra ID Conditional Access
Why it's wrong here
Microsoft Entra ID Conditional Access is an identity and session control layer that evaluates user, location, device, and risk signals to allow or block access to Exchange Online. While it can require MFA or a compliant device, it cannot enforce intra-app data-handling rules, such as preventing data transfer between corporate Outlook data and personal applications. Therefore, it controls whether access happens, but not what happens to data after it is accessed.
- ✗
Microsoft Baseline Protection
Why it's wrong here
Microsoft Baseline Protection is not a real Microsoft 365 service or feature; the name resembles terms like 'security baseline' or 'Microsoft Secure Score' but does not correspond to any actual product capability. Because no such technology exists, it cannot be used to manage email access or data protection. This option is purely a distractor and should be dismissed.
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Related to this question
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Microsoft Purview Information Protection
Key term
Microsoft 365
Microsoft 365 is a subscription-based cloud service from Microsoft that combines productivity tools like Office apps with security, device management, and online storage.
Key term
Mobile application management
Mobile application management (MAM) is the practice of controlling and securing corporate apps and their data on employee-owned or company-provided mobile devices without managing the entire device.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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