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C#.NET Interview questions


Total available count: 70
Subject - Microsoft Technologies
Subsubject - C#.NET
1
What is Object oriented programming?
2
What is an object?
3
What is Data Encapsulation?
4
What is a constructor?
5
What is Default constructor?
6
What is Parameterized constructor?
7
What is an Instance constructor?
8
What is a Private constructor?
9
What is a Static constructor?
10
What is the difference between Static constructor and Private constructor?
11
Explain about System.Object?
12
Explain Ref and Out parameters?
13
What is New operator?
14
What is Inheritance?
15
Does C#.NET support multiple Inheritance?
16
What is meant by Mutable and Immutable?
17
What is New modifier or Method?
18
What is Polymorphism?
19
What is Method overloading?
20
Explain about Constructor based Overloading?
21
What is a class?
22
Explain about Late binding and Early binding?
23
Explain about different Access Modifiers?
24
Describe different members of a class?
25
Describe different Naming conventions?
26
Explain about Abstract classes?
27
Explain difference Method overriding and Abstract methods overriding?
28
Explain about Interface?
29
Difference between Class, Abstract class and Interfaces?
30
What is copy constructor?
31
Explain about Delegates?
32
What is the role of the new operator in object creation?
33
What is a variable?
34
What is Pure virtual method?
35
What is Pure-polymorphism?
36
Explain about Char datatype?
37
What are constant variables?
38
Explain about 'is' and 'as' keywords?
39
Index out of range exception in C#.NET
40
Explain the difference about Array and Arraylist?
41
Explain about System.Collections?
42
What is a Load factory in C#.NET?
43
Difference between Constant Vs Readonly?
44
Static members and Instance members in C#.NET?
45
this and base keywords in C#.NET?
46
Partial classes and Partial methods in C#.NET?
47
Unsafe keyword in C#.NET?
48
Explain about Indexers in C#.NET?
49
Differences between Properties and Indexers in C#.NET?
50
Explain about Generics in C#.NET?
51
Explain about Enumerations in C#.NET?
52
Explain about Inheritance based overloading?
53
Explain about Method Overriding?
54
What is Sealed class?
55
Explain about Events in C#.NET?
56
Explain differences between Overloading and Overriding?
57
Explain about Method hiding?
58
Explain about Anonymous methods in C#.NET?
59
Explain about Iterators in C#.NET?
60
What are Nullable types in C#.NET?
61
Properties in C#.NET?
62
Extension methods in C#.NET
63
Lambda expressions in C#.NET?
64
Explain about Serialization in C#.NET?
65
Explain about Attributes in C#.NET?
66
What is Static keyword?
67
Explain about type casting?
68
Explain about Arrays in C#.NET?
69
Difference between signed integer and an unsigned integer in C#.NET?
70
Difference between int and int? variables in C#.NET?