Desktop Application Desktop Application MCQ 5

Question 1

What is the purpose of the 'manifest file' (app.manifest) in a Windows desktop application?

Accepted Answer

To declare required permissions, DPI awareness, runtime dependencies, and UAC execution level

Answer

The application manifest declares metadata like required execution level (UAC), DPI awareness settings, and compatible Windows versions.

Question 2

Which approach is used to prevent UI freezing when performing a long-running operation in a desktop application?

Accepted Answer

Run the operation on a background thread and update the UI on the main thread

Answer

Long operations should run on a background thread so the UI thread remains free to process user input and repaints, preventing the frozen 'not responding' state.

Question 3

In desktop application testing, what is 'UI automation testing'?

Accepted Answer

Programmatically driving the application's UI controls to simulate user interactions and verify behavior

Answer

UI automation testing uses tools like WinAppDriver, Appium, or Sikuli to programmatically click buttons, enter text, and assert UI state as a real user would.

Question 4

What is 'portable' mode for a desktop application?

Accepted Answer

The app runs without installation, storing all settings relative to its own directory

Answer

A portable app requires no installation and stores all configuration files in its own directory, allowing it to run directly from a USB drive or any folder.

Question 5

What does 'graceful degradation' mean for a desktop application?

Accepted Answer

The app continues to function with reduced features when a dependency or service is unavailable

Answer

Graceful degradation means the application continues to provide core functionality even when optional dependencies, features, or network services are unavailable.

Desktop Application Practice Test

Desktop Application Practice Test

Desktop Application Desktop Application MCQ 5