Deck 1: C# Programming Language and Visual Studio IDE

Question 1

A variable which is declared inside a method is called a________variable

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

Answer 1

Local

Question 2

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

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

Answer 2

Compare()

Question 3

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

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

Answer 3

1.5 * 10 ^-45 to 3.4 * 10 ^38

Question 4

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

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

Question 5

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();
}

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

Question 6

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.

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

Question 7

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

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

Question 8

Select output of the given set of Code :static void Main(string[] args){String name = "Dr.Gupta"; Console.WriteLine("Good Morning" + name);
}

A)Dr.Gupta
B)Good Morning
C)Good Morning Dr.Gupta
D)Good Morning name

Question 9

Which of the following is an 8-byte Integer?

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

Question 10

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

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

Question 11

Which of the following does not store a sign?

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

Question 12

What is the size of a Decimal?

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

Question 13

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

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

Question 14

Which of the following statements is correct?

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 15

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

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

Question 16

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);

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

Question 17

Which of the following are NOT Relational operators in C#.NET?
1)>=
2)!=
3)Not
4)<=
5)<>=

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

Question 18

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

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

Question 19

A GUI:

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 20

Visual Studio .NET provides which feature:

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

Question 21

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

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