Interfaces MCQ with Answers PDF Download eBook - 65

MCQ: The most appropriate option is that

1. When a class inherits an interface it inherits member definitions as well as its implementations.
2. An interface cannot contain the signature of an indexer.
3. Interfaces members are automatically public.
4. To implement an interface member, the corresponding member in the class must be public as well as st

MCQ: Delegates are most commonly used in

1. Event handling
2. Multithreading
3. Both a and b
4. Exception Handling

MCQ: A structure variable gets destroyed

1. When no reference refers to it,it will get garbage collected
2. Depends on whether it is created using new or without new operator
3. As variable goes out of the scope
4. Depends on either we free its memory using free() or delete()

MCQ: Output of given code will be <br/> <code> int i = 1; do { Console.WriteLine("{0}", i++); } while (i <= 10); </code>

1. 1 2 3 4 5 6 7 8 9 10
2. 1 2 3 4 5 6 7 8 9
3. 1,2,3,4,5,6,7,8,9,10
4. 1/2/3/4/5/6/7/8/9/10

MCQ: The difference between reference type and value type is that

1. reference types always contains a value but a value type can be null
2. reference types always value type always contains a value but a reference type can be null
3. both can either have values or can be null
4. b and c