Quiz on C Operators

int x;

int y;

int z;

x=3;

y=4;

z = ++x * y++;

printf("%d",z);

• 12

• 16

• 20

• 0

Which operator is used to compare two values for equality?

• <>

• =

• !=

• ==

What is the output of the expression (5 > 3) && (2 < 4)?

• undefined

• true

• false

• null

What does the bitwise operator '&' do in C?

• The '&' operator shifts bits to the left.

• The '&' operator inverts the bits of a number.

• The '&' operator performs a bitwise AND operation.

• The '&' operator performs a bitwise OR operation.

How do you assign a value to a variable in C?

• You can assign a value to a variable in C by using the command: set variable_name to value;

• You assign a value to a variable in C using the syntax: variable_name = value;.

• In C, you declare a variable and assign a value with the syntax: variable_name : value;

• You assign a value to a variable in C using the syntax: value = variable_name;

#include <stdio.h>

int main()

{

int i = 95;

char c = 97;

printf("%d, %d\n", sizeof(i), sizeof(c));

return 0;

}

• 4,1

• 4,2

• 2,4

• 2,8

How do you determine the size of a data type in C?

• Use the 'sizeof' operator.

• Use the 'length' function.

• Check the data type documentation.

• Use the 'size' keyword.

What is the result of the expression 10 & 4?

• 14

• 0

• 8

• 6

Which operator is used to access the value pointed to by a pointer?

• @

• ->

• *

• &

#include <stdio.h>

void main()

{

int x = 5 * 9 / 3 + 9;

printf ("%d",x);

}

• 24

• 3

• 23

• 34