AVEVA Senior R&D Engineer Interview Questions and Answers

A task is a unit of work while a thread is a unit of execution.

• A task is a logical concept while a thread is a physical concept.

• A task can be broken down into multiple threads.

• A task can be scheduled by the operating system while a thread cannot.

• A task can communicate with other tasks while a thread cannot.

Delegate is used to pass methods as parameters to other methods or to invoke methods asynchronously.

• Delegate is a type-safe function pointer.

• It allows methods to be passed as parameters to other methods.

• It can be used to invoke methods asynchronously.

• It can be used to implement events and callbacks.

• Example: passing a method as a parameter to a sorting algorithm.

• Example: invoking a method asynchronously using BeginInvok