Desktop Application Desktop Application Performance & Optimization

Question 1

What is 'lazy loading' in desktop application performance optimization?

Accepted Answer

Loading resources or modules only when they are actually needed

Answer

Lazy loading delays the loading of non-critical resources until they are required, improving startup time and initial memory usage.

Question 2

Which technique reduces desktop application startup time by loading only essential components initially?

Accepted Answer

Splash screen with deferred initialization

Answer

Deferring non-essential initialization to after the main window appears reduces perceived and actual startup time.

Question 3

What is 'memory leak' in a desktop application and why is it a performance problem?

Accepted Answer

When the application allocates memory that it never releases, gradually consuming more RAM

Answer

Memory leaks cause an application's RAM usage to grow continuously over time, eventually slowing or crashing the system.

Question 4

What does 'multithreading' allow a desktop application to do?

Accepted Answer

Execute multiple tasks concurrently on different CPU cores or threads

Answer

Multithreading enables an application to perform background work on separate threads, keeping the UI responsive during long operations.

Question 5

What is 'caching' in desktop application performance?

Accepted Answer

Storing frequently accessed data in fast memory to avoid repeated expensive computations or reads

Answer

Caching stores pre-computed or pre-fetched data so the application can retrieve it quickly without repeating the original operation.

Desktop Application Practice Test