Infogain

1. Commands in WPF
Ans Commands provide a way to View to update the modal in MVVM architechture. ICommand interface use to bind buttons and other user control to Functions of Modal.

2. Difference between Generalization and Specialization
Ans : Click Her for Ans

3. Covariance and Contravariance
Ans : Click Here for Ans

4. Mutex() lock() and semaphore() in threading
Ans : Click Here For Semaphore 
          Click Here For Mutex 
          Click Here For Lock

5. Dead Lock
6. Custom Controls in WPF
Ans : Click Here For Detail


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