CAS-004 Security Architecture Practice Question
A healthcare provider must allow clinicians to access patient records from personal mobile devices while ensuring that data cannot be copied to unauthorized apps or stored locally. The organization wants to enforce this without managing the entire device. Which of the following should the security architect implement?
⚠ Common exam trap
The trap here is conflating mobile device management with mobile application management; MDM controls the whole device, while MAM controls only the app.
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
✓
Mobile application management (MAM) with app-level encryption and containerization
MAM with app-level encryption and containerization enforces data protection at the application layer, allowing personal device use while preventing patient data from being copied to unauthorized apps or stored locally. It avoids the privacy concerns of full device management and directly addresses the data leakage requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Virtual desktop infrastructure (VDI) with clipboard redirection disabled
Why it's wrong here
VDI can isolate data in the data center, but it does not prevent a user from taking screenshots or using personal apps outside the VDI session on the same device. It also requires network connectivity and may not satisfy the requirement for app-level control on personal devices. The scenario specifically asks for preventing data copying to unauthorized apps.
- ✗
Mobile threat defense (MTD) with behavioral anomaly detection
Why it's wrong here
MTD detects malicious behavior and threats on mobile devices but does not enforce data loss prevention policies such as blocking copy/paste or local storage. It is complementary but does not satisfy the requirement to prevent data exfiltration from the app. Therefore it is not the primary control needed here.
- ✗
Mobile device management (MDM) with full device wipe capability
Why it's wrong here
MDM manages the entire device and typically requires enrollment that gives the organization broad control, which is not desired for personal devices. Full device wipe is a heavy-handed control that does not specifically prevent data copying to unauthorized apps and may be unacceptable to clinicians. It does not meet the selective enforcement requirement.
- ✓
Mobile application management (MAM) with app-level encryption and containerization
Why this is correct
MAM applies policy to specific apps rather than the whole device, allowing personal use while preventing data leakage. App-level encryption and containerization keep patient data within the managed app and block copy/paste or local storage to unauthorized apps. This matches the requirement to avoid full device management.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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