Objective Questions of C# with Answer set-2

Objective Questions in C#

1. In C# variables are categorized into ..........

i) Value types          ii) Reference types              iii) initial types             iv) pointer types

A) i, ii and iii only

B) ii, iii and iv only

C) i, ii and iv only

D) All i, ii, iii and iv


2. Value type variables can be assigned a value directly which are derived from the class

A) System.value

B) System.ValueType

C) General.ValueType

D) Variable.ValueType


3. The various data types used in C# are

i) Integral Type           ii) Floating point types

iii) Boolean types       iv) Nullable types

A) i, ii and iii only

B) ii, iii and iv only

C) i, iii and iv only

D) All i, ii, iii and iv


4. The built-in operators that are provided by C# programming language are...

i) Arithmetic operators          ii) Logical operators

iii) Bitwise operators             iv) Assignment operators

A) i, ii and iii only

B) ii, iii and iv only

C) i, iii and iv only

D) All i, ii, iii and iv


5. Match the different Bitwise operators supported by C# with their descriptions.

i) &                   a) Binary Left Shift Operator

ii) ^                   b) Binary Right Shift Operator

iii) <<               c) Binary XOR operator

iv) >>               d) Binary AND operator

A) i-d, ii-c, iii-a, iv-b

B) i-b, ii-c, iii-a, iv-d

C) i-c, ii-a, iii-b, iv-d

D) i-a, ii-c, iii-d, iv-b



6. What will be the value of the following expression if x=10?

A) 25

B) -5

C) 10

D) 15


7. While passing parameter to a method ................ copies the actual value of an argument into the formal parameter of the function.

A) Output Parameter

B) Value Parameter

C) Reference Parameter

D) Initial Parameter


8. In C# methods can be defined by using which of the following syntex?

A) <Method Name> (parameter list) { Method body }

B) <Method Name> <Return Type> <Access Specifier> (parameter list) { Method body }

C) <Return Type> <Method Name> <Access Specifier> (parameter list) { Method body }

D) None of the above


9. Which of the following are the methods to assign values to an array?

i) double [ ] score = {234.0, 214.5, 572.0};

ii) int [ ] marks = new int [3] {33, 45, 67};

iii) int [ ] marks = new int [ ] {33, 45, 67};

A) i and ii only

B) ii and iii only

C) i and iii only

D) All i, ii, iii


10. State whether the following statements are True or False.

i) Unlike classes, structures cannot inherit other structures or classes.

ii) A structure can implement one or more interfaces.

iii) Structure members can be specified as abstract, virtual or protected.

A) i- True, ii- False, iii-True

B) i- False, ii- True, iii-True

C) i-True, ii-True, iii-False

D) i- False, ii- False, iii-True

Answers:

1.   C) i, ii and iv only

2.   B) System.ValueType

3.   D) All i, ii, iii and iv

4.   D) All i, ii, iii and iv

5.   A) i-d, ii-c, iii-a, iv-b

6.   A) 25

7.   B) Value Parameter

8.   A)<Access Specifier><Return Type> <Method Name> (parameter list) {Method body}

9.   D) All i, ii, iii

10. C) i-True, ii-True, iii-False

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