C# Delegate Test - Sanfoundry

1. Which of the following is an incorrect statement about delegate?

delegate is a value type

delegates are type safe wrappers for function pointers

a single delegate can invoke more than one method

delegates could be shared

2. Which among the following differentiates a delegate in C#.NET from a conventional function pointer in other languages?

none of the mentioned

delegates in C#.NET represent a new type in the Common Type System

delegates allows static as well as instance methods to be invoked

delegates are type safe and secure

3. To generate a simple notification for an object in runtime, the programming construct to be used for implementing this idea?

attribute

delegate

namespace

interface

4. Which of the following statements is correct about a delegate?

delegates provides wrappers for function pointers

delegates are not type safe

none of the mentioned

inheritance is a prerequisite for using delegates

5. Choose the incorrect statement about delegates?

delegates permits execution of a method in an asynchronous manner

delegates can be used to implement callback notification

delegates are not type safe

delegate is a user defined type

6. Which among the following is the correct statement about delegate declaration?

delegate void del(int i);

on declaring the delegate, a class called del is created

all of the mentioned

the del class will contain a one argument constructor and an invoke() method

the del class is derived from the MulticastDelegate class

7. Choose the incorrect statement among the following about the delegate?

none of the mentioned

delegates are of reference types

delegates are object oriented

delegates are type safe

8. To implement delegates, the necessary condition is?

runtime polymorphism

inheritance

class declaration

exceptions

9. Suppose a Generic class called as SortObjects is to be made capable of sorting objects of any type(integer, single, byte etc). Then, which of the following programming constructs is able to implement the comparison function?

delegate

attribute

interface

encapsulation

10. The 'ref' keyword can be used with which among the following?

Static data

Static function/subroutine

Instance function/subroutine

All of the mentioned