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C#.NET Interview questions


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