Question 1

Which is not a main component of the Visual Studio IDE?

Accepted Answer

A)  Solution Explorer
B)  Tool Box
C)  Start Menu
D)  Designer Window C

Question 2

Which of the following is NOT an Assignment operator in C#.NET?

Accepted Answer

A)  \=
B)  /=
C)  *=
D)  += A

Question 3

Which is the String method used to compare two strings with each other ?

Accepted Answer

A)  Compare To() 
B)  Compare() 
C)  Copy() 
D)  ConCat()  B

Question 4

Which of the following statements is correct?

Accepted Answer

A)  When a class inherits an interface it inherits member definitions as well as its implementations.
B)  An interface cannot contain the signature of an indexer.
C)  Interfaces members are automatically public.
D)  To implement an interface member, the corresponding member in the class must be public as well as static.

Question 5

Scope of variable is related to definition of variable as:
1) Region of code within which variable value is valid and hence can be accessed.
2) No, relation with region where variable is declared its value is valid in entire scope.

Accepted Answer

A)  a
B)  b
C)  a, b
D)  None of the mentioned

Question 6

Minimum and Maximum range of values supported by 'float' data type are ?

Accepted Answer

A)  1.5 * 10 ^-40 to 3.4 * 10 ^38
B)  1.5 * 10 ^-45 to 3.4 * 10 ^30
C)  1.5 * 10 ^-45 to 3.4 * 10 ^38
D)  1.5 * 10 ^-45 to 3.4 * 10 ^37

Question 7

Which of the following does not store a sign?

Accepted Answer

A)  Short
B)  Integer
C)  Long
D)  Byte

Question 8

Which of the following can implement an interface?
1)Data
2)Class
3)Enum
4)Structure
5)Namespace

Accepted Answer

A)  1, 3
B)  2, 4
C)  3, 5
D)  4 only

Question 9

What will be output of the following conversion ?
Static void Main(string[] args){char a = 'A';
String b = "a";
Console.WriteLine(Convert.ToInt32(a));
Console.WriteLine(Convert.ToInt32(Convert.Tochar(b)));
Console.ReadLine();
}

Accepted Answer

A)  1, 97
B)  65, 97
C)  65, 97.
D)  97, 1

Question 10

What is the size of a Decimal?

Accepted Answer

A)  4 byte
B)  8 byte
C)  16 byte
D)  32 byte

Question 11

Which of the following is the correct output of the C#.NET code snippet given below?
Int[ , , ] a = new int[ 3, 2, 3 ];
Console.WriteLine(a.Length);

Accepted Answer

A)  20
B)  4
C)  18
D)  10

Question 12

Which datatype should be more preferred for storing a simple number like 35 to improve execution speed of a program?

Accepted Answer

A)  sbyte
B)  short
C)  int
D)  long

Question 13

Which of the following are value types?
1)Integer
2)Array
3)Single
4)String
5)Long

Accepted Answer

A)  1, 2, 5
B)  1, 3, 5
C)  2, 4
D)  3, 5

Question 14

Which of the following is the correct size of a Decimal datatype?

Accepted Answer

A)  8 Bytes
B)  4 Bytes
C)  10 Bytes
D)  16 Bytes

Question 15

Type of Conversion in which compiler is unable to convert the datatype implicitly is ?

Accepted Answer

A)  ushort to long
B)  int to uint
C)  ushort to long.
D)  byte to decimal

Question 16

A GUI:

Accepted Answer

A)  uses buttons, menus, and icons.
B)  should be easy for a user to manipulate.
C)  stands for Graphic Use Interaction.
D)  Both a and b.

Question 17

A variable which is declared inside a method is called a________variable

Accepted Answer

A)  Serial
B)  Local
C)  Private
D)  Static

Question 18

Which of the following is an 8-byte Integer?

Accepted Answer

A)  Char
B)  Long
C)  Short
D)  Byte

Question 19

Which of the following are NOT Relational operators in C#.NET?
1)>=
2)!=
3)Not
4)=

Accepted Answer

A)  1, 3
B)  2, 4
C)  3, 5
D)  4, 5

Question 20

Visual Studio .NET provides which feature:

Accepted Answer

A)  debugging.
B)  application deployment.
C)  syntax checking.
D)  All of the above..

Exam 1: C# Programming Language and Visual Studio IDE