Explore topic-wise MCQs in C Sharp Programming.

This section includes 52 Mcqs, each offering curated multiple-choice questions to sharpen your C Sharp Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following statements are correct about the following code snippet? int a = 10; int b = 20; bool c; c = !(a > b);There is no error in the code snippet. An error will be reported since ! can work only with an int. A value 1 will be assigned to c. A value True will be assigned to c. A value False will be assigned to c.

A. 1, 3
B. 2, 4
C. 4, 5
D. 1, 4
E. None of these
Answer» E. None of these
Discussion
2.

What will the following expression evaluate to? !true && !false

A. True
B. False
C. Error
D. None of the mentioned
Answer» C. Error
Discussion
3.

What will the following expression evaluate to? (true && false) || (!true)

A. True
B. False
C. Error
D. None of the mentioned
E. || (!true)a) Trueb) Falsec) Errord) None of the mentioned
Answer» C. Error
Discussion
4.

What will the following expression evaluate to? true || false

A. True
B. False
C. Error
D. None of the mentioned
Answer» B. False
Discussion
5.

What will the following expression evaluate to? true && false

A. True
B. False
C. Error
D. None of the mentioned
Answer» C. Error
Discussion
6.

The boolean operator && only result in true when both the values are true?

A. True
B. False
Answer» B. False
Discussion
7.

Which of the following is a valid boolean operator?a) and(&&)b) or(|

A. and(&&)
B. or(||)
C. not(!)
D. All of the mentioned
Answer» E.
Discussion
8.

Boolean opeartors are also known as logical operators.

A. True
B. False
Answer» B. False
Discussion
9.

How many operands does the >= operator require?

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
Discussion
10.

Is there a difference between the = and the == operators?

A. Yes
B. No
Answer» B. No
Discussion
11.

What is the purpose of the

A. Bitwise AND
B. Bitwise Right Shift
C. Bitwise Left Shift
D. Bitwise OR
Answer» D. Bitwise OR
Discussion
12.

What is the name of the ^ operator?

A. Bitwise XNOR
B. Bitwise NAND
C. Bitwise XOR
D. Bitwise AND
Answer» D. Bitwise AND
Discussion
13.

What is the name of the ~ operator?

A. Bitwise NOT
B. Logical NOT
C. Bitwise SHIFT
D. Pointer Address
Answer» B. Logical NOT
Discussion
14.

What is the name of the | operator?

A. Logical OR
B. Bitwise OR
C. Logical AND
D. Bitwise AND
Answer» C. Logical AND
Discussion
15.

What is the difference between ternary operators and unary operators?

A. Ternary Operators work with 1 operand while unary operators work with 3 operands
B. Ternary Operators work with 3 operands while unary operators work with 1 operand
C. Ternary Operators work with 2 operands while unary operators work with 3 operands
D. Ternary Operators work with 4 operands while unary operators work with 1 operand
Answer» C. Ternary Operators work with 2 operands while unary operators work with 3 operands
Discussion
16.

What is the output of the following program if ‘a’ and ‘b’ are both supplied with 5V?

A. Equal
B. Not Equal
C. Runtime Error
D. Compilation ErrorView Answer
Answer» B. Not Equal
Discussion
17.

The maximum non zero value for FLOAT is ______________

A. 3.402823466E+38
B. 3.402823466E+37
C. 3.402823466E+39
D. 3.402823466E+35
Answer» B. 3.402823466E+37
Discussion
18.

‘fetchrow_hashref()’ returns a reference to the hash of row values keyed by what?

A. row name
B. column name
C. table name
D. database name
Answer» C. table name
Discussion
19.

Which function returns a reference to hash of row values?

A. fetchrow_array()
B. fetchrow_arrayref()
C. fetch()
D. fetchrow_hashref()
Answer» E.
Discussion
20.

Which function returns an array of row values?

A. fetchrow_array()
B. fetchrow_arrayref()
C. fetch()
D. fetchrow_hashref()
Answer» B. fetchrow_arrayref()
Discussion
21.

What does RTF refer to?

A. Rich Text Format
B. Right Text Format
C. Rich Text Function
D. Right Text Function
Answer» B. Right Text Format
Discussion
22.

Which operator compares sounds?

A. MATCH SOUNDS
B. CHECK SOUNDS
C. SOUNDS LIKE
D. SOUNDS SIMILAR
Answer» D. SOUNDS SIMILAR
Discussion
23.

The right shift operator is _____________

A. >>
B. <<
C. <
D. >
Answer» B. <<
Discussion
24.

Which operator is used to return value from JSON columns after evaluating the path and unquoting the result?

A. ->
B. ->>
C. <<
D. >>
Answer» C. <<
Discussion
25.

Determine output:public class Test{static int i = 5;public static void main(String... args){System.out.println(i++);System.out.println(i);System.out.println(++i);System.out.println(++i+i++);}}

A. 6 6 16
B. 7 6 16
C. 6 7 16
D. 6 6 16
E. one of these
Answer» D. 6 6 16
Discussion
26.

What will be the output?if(1 + 1 + 1 + 1 + 1 == 5){System.out.print("TRUE");}else{System.out.print("FLASE");}

A. RUE
B. ALSE
C. ompiler Error
D. one of these
Answer» B. ALSE
Discussion
27.

What is the output of the following program ?class Numbers{public static void main(String args[]){int a=20, b=10;if((a < b) && (b++ < 25)){System.out.println("This is any language logic");}System.out.println(b);}}

A. 2
B. 1
C. 0
D. ompilation Error
Answer» D. ompilation Error
Discussion
28.

int ++a = 100 ;System.out.println( ++a ) ;What will be the output of the above fraction of code ?

A. 00
B. isplays error as ++a is not enclosed in double quotes in println statement
C. ompiler displays error as ++a is not a valid identifier
D. one of these
Answer» D. one of these
Discussion
29.

Determine output:public class Test{public static void main(String... args){int a=5 , b=6, c=7;System.out.println("Value is "+ b + c);System.out.println(a + b + c);System.out.println("String " + (b+c));}}

A. alue is 67 18 String 13
B. alue is 13 18 String 13
C. alue is 13 18 String
D. ompilation fails
E. one of these
Answer» B. alue is 13 18 String 13
Discussion
30.

What will be the output after compiling and running following code?1. public class Test{2.public static void main(String... args){3.int x =5;4.x *= 3 + 7;5.System.out.println(x);6.}7. }

A. 2
B. 0
C. 0
D. ompilation fails with an error at line 4
E. one of these
Answer» C. 0
Discussion
31.

What will be the output?public class Test{public static void main(String args[]){int a = 42;double b = 42.25;System.out.print((a%10)+" "+(b%10));}}

A. 2 42.5
B. 2.5
C. .2 4.225
D. 4.225
E. ompilation Error
Answer» C. .2 4.225
Discussion
32.

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

A. \=
B. /=
C. *=
D. +=
E. %=
Answer» B. /=
Discussion
33.

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

A. \=
B. /=
C. *=
D. +=
Answer» B. /=
Discussion
34.

What will be the output of the C#.NET code snippet given below? byte b1 = 0xAB; byte b2 = 0x99; byte temp; temp = (byte)~b2; Console.Write(temp + " "); temp = (byte)(b1 > 2); Console.WriteLine(temp);

A. 102 1 38
B. 108 0 32
C. 102 0 38
D. 1 0 1
Answer» D. 1 0 1
Discussion
35.

Which of the following statements is correct about Bitwise | operator used in C#.NET?

A. The | operator can be used to put OFF a bit.
B. The | operator can be used to Invert a bit.
C. The | operator can be used to check whether a bit is ON.
D. The | operator can be used to check whether a bit is OFF.
Answer» E.
Discussion
36.

Suppose n is a variable of the type Byte and we wish, to check whether its fourth bit (from right) is ON or OFF. Which of the following statements will do this correctly?

A. if ((n&16) == 16) Console.WriteLine("Fourth bit is ON");
B. if ((n&8) == 8) Console.WriteLine("Fourth bit is ON");
C. if ((n ! 8) == 8) Console.WriteLine("Fourth bit is ON");
D. if ((n ^ 8) == 8) Console.WriteLine("Fourth bit is ON");
Answer» C. if ((n ! 8) == 8) Console.WriteLine("Fourth bit is ON");
Discussion
37.

Which of the following is the correct output for the C#.NET code snippet given below? Console.WriteLine(13 / 2 + " " + 13 % 2);

A. 6.5 1
B. 6.5 0
C. 6 0
D. 6 1
Answer» E.
Discussion
38.

Which of the following statements are correct? The conditional operator (?:) returns one of two values depending on the value of a Boolean expression. The as operator in C#.NET is used to perform conversions between compatible reference types. The &* operator is also used to declare pointer types and to dereference pointers. The -> operator combines pointer dereferencing and member access. In addition to being used to specify the order of operations in an expression, brackets [ ] are used to specify casts or type conversions.

A. 1, 2, 4
B. 2, 3, 5
C. 3, 4, 5
D. 1, 3, 5
Answer» B. 2, 3, 5
Discussion
39.

Suppose n is a variable of the type Byte and we wish to put OFF its fourth bit (from right) without disturbing any other bits. Which of the following statements will do this correctly?

A. n = n && HF7
B. n = n & 16
C. n = n & 0xF7
D. n = n & HexF7
Answer» D. n = n & HexF7
Discussion
40.

Which of the following are Logical operators in C#.NET? && || ! Xor %

A. 1, 2, 3
B. 1, 3, 4
C. 2, 4, 5
D. 3, 4, 5
Answer» B. 1, 3, 4
Discussion
41.

Which of the following statements are correct about the following code snippet? int a = 10; int b = 20; bool c; c = !(a > b); There is no error in the code snippet. An error will be reported since ! can work only with an int. A value 1 will be assigned to c. A value True will be assigned to c. A value False will be assigned to c.

A. 1, 3
B. 2, 4
C. 4, 5
D. 1, 4
Answer» E.
Discussion
42.

Which of the following statements are correct about the Bitwise & operator used in C#.NET? The & operator can be used to Invert a bit. The & operator can be used to put ON a bit. The & operator can be used to put OFF a bit. The & operator can be used to check whether a bit is ON. The & operator can be used to check whether a bit is OFF.

A. 1, 2, 4
B. 2, 3, 5
C. 3, 4
D. 3, 4, 5
Answer» E.
Discussion
43.

What will be the output of the C#.NET code snippet given below? int a = 10, b = 20, c = 30; int res = a < b ? a < c ? c : a : b; Console.WriteLine(res);

A. 10
B. 20
C. 30
D. Compile Error / Syntax Error
Answer» D. Compile Error / Syntax Error
Discussion
44.

Which of the following statements is correct about Bitwise ^ operator used in C#.NET?

A. The ^ operator can be used to put ON a bit.
B. The ^ operator can be used to put OFF a bit.
C. The ^ operator can be used to Invert a bit.
D. The ^ operator can be used to check whether a bit is ON.
Answer» D. The ^ operator can be used to check whether a bit is ON.
Discussion
45.

Which of the following is NOT a Bitwise operator in C#.NET?

A. &
B. |
C. <<
D. ^
Answer» D. ^
Discussion
46.

What will be the output of the C#.NET code snippet given below? byte b1 = 0xF7; byte b2 = 0xAB; byte temp; temp = (byte)(b1 & b2); Console.Write (temp + " "); temp = (byte)(b1^b2); Console.WriteLine(temp);

A. 163 92
B. 92 163
C. 192 63
D. 0 1
Answer» B. 92 163
Discussion
47.

What will be the output of the C#.NET code snippet given below? int i, j = 1, k; for (i = 0; i < 5; i++) { k = j++ + ++j; Console.Write(k + " "); }

A. 8 4 16 12 20
B. 4 8 12 16 20
C. 4 8 16 32 64
D. 2 4 6 8 10
Answer» C. 4 8 16 32 64
Discussion
48.

What will be the output of the C#.NET code snippet given below? int num = 1, z = 5; if (!(num

A. 5 6
B. 6 5
C. 6 6
D. 7 7
Answer» E.
Discussion
49.

Which of the following statements is correct about the C#.NET code snippet given below? int d; d = Convert.ToInt32( !(30 < 20) );

A. A value 0 will be assigned to d.
B. A value 1 will be assigned to d.
C. A value -1 will be assigned to d.
D. The code reports an error.
Answer» C. A value -1 will be assigned to d.
Discussion
50.

Which of the following are NOT Relational operators in C#.NET? >= != Not

A. 1, 3
B. 2, 4
C. 3, 5
D. 4, 5
Answer» D. 4, 5
Discussion