Which type encapsulates computer programs from the underlying OS on which they are executed?

• A. Emulation
• B. Blob Storage
• C. Application Virtualization
• D. Key-Value Pair

Answer: (C)

Application virtualization isolates an application from the host operating system by wrapping the app with its own runtime and dependencies and running it through a virtualization layer. This creates a separate, controlled environment for the program, so it operates without altering the OS or its files, registry, or installed libraries. This encapsulation helps prevent conflicts with other software and makes deployment easier across different systems.

Emulation imitates another system or hardware environment, which is broader than just isolating apps from the OS. Blob storage and a key-value store are data storage concepts and don’t address running software in isolation.