C Quiz

by Barry Allen | Nov 19, 2022 | Assessment, Interview

Welcome to our C quiz! C is a powerful and widely used programming language that’s used for developing system software, embedded systems, and more. Whether you’re just starting to learn C or you’re an experienced developer, this quiz will challenge your knowledge of the language and help you identify areas where you might need to improve. With a mix of multiple choice and coding questions, you’ll be tested on topics like syntax, data types, pointers, arrays, and more. So, let’s get started and see how well you know C!

C Quiz

Test your knowledge of the C programming language with our interactive C quiz! Challenge yourself with a variety of multiple choice and coding questions on topics ranging from syntax to pointers and arrays.

1 / 31

30) The number of elements stored in a Multi-dimensional array can be found by which operation?

Substraction

Multipliying

Adding

Divide

2 / 31

29) Which of these is a header file for string functions?

csString

math.h

iostream

stdio.h

3 / 31

28) What will be the output of the following code? #include
int main()
{
int arr[] = { 23, 96, 30, 32, 90, 20 };

int* ptr = arr;
printf("The number is %d", *ptr);
return 0;
}

4 / 31

27) Which of the following is the dereference operator?

;

5 / 31

26) What will be the output of the following code? int main() {
const int myNum = 48;
myNum == 32;

printf("%d", myNum);
return 0;
}

Error

None

6 / 31

25) What will be the data type of myCopy = 'E';

String

Char

Int

Float

7 / 31

24) Which of the following code will print 410 as output?

#include <stdio.h> int main() { int sum1 = 40 + 50; int sum2 = sum1 + 320; printf("%dn", sum2); return 0; }

#include <stdio.h> int main() { int sum1 = 50 - 50; int sum2 = sum1 + 20; printf("%dn", sum2); return 0; }

#include <stdio.h> int main() { int sum1 = 40 *50; int sum2 = sum1 + 320; printf("%dn", sum2); return 0; }

#include <stdio.h> int main() { int sum1 = 90+ 50; int sum2 = sum1 + 320; printf("%dn", sum2); return 0; }

8 / 31

23) Which of the following code will print "Good Morning" in C?

print(Good Morning)

console.log('Good Morning');

int main() { printf("Good Morning"); return 0; }

puts "Good Morning"

9 / 31

22) To access the members of structure in C language, we must use?

Semicolon

Dot

Slash

None

10 / 31

22) What will be the output of the following program? #include
#include

int main() {
printf("%f", sqrt(256));
return 0;
}

11 / 31

21) Which of the following will return the tangent of an angle?

sin(x)

tan(x)

atan(x)

All of the above

12 / 31

20) What is the output of the following program? #include
#include

int main() {
printf("%fn", ceil(3.8));
printf("%fn", floor(3.8));
return 0;
}

4.000000 4.000000

3.000000 3.000000

2.000000 1.000000

4.000000 3.000000

13 / 31

19) Which of the following leads to excessive loss of memory or processor power if the function is not writen properly

Recursion

Math Function

Pointers

Switch

14 / 31

18) A function in C language consists of

Function name and Function body

Arguments

Declaration and Defination

Parameters and Function name

15 / 31

17) Which of the following code will print "I am enough"?

void myFunction() { printf("I am enough"); } int main() { myFunction; return 0; }

void myFunction() { printf("I am Enough"); } int main() { myFunction(); return 0; }

void myFunction() { printf("I am enough"); } int main() { myFunction(); return 0; }

void myFunction() { print("I am Enough"); } int main() { myFunction(); return 0; }

16 / 31

16) What are specified after a function name inside a parenthesis?

Parameters

Arguments

String

Function call

17 / 31

15) Which of the following code will result from an output 13?

#include <stdio.h> int myFunction(int y) { return 5 + y; } int main() { printf("Result is: %d", myFunction(3)); return 0; }

#include <stdio.h> int myFunction(int x) { return 10 + x; } int main() { printf("Result is: %d", myFunction(3)); return 0; }

#include <stdio.h> int myFunction(int x) { return 20 - x; } int main() { printf("Result is: %d", myFunction(4)); return 0; }

#include <stdio.h> int myFunction(int y) { return 2 * y; } int main() { printf("Result is: %d", myFunction(3)); return 0; }

18 / 31

14) Which of the following are arguments in the code void myFunction(char name[]) {
printf("Good Morning %sn", name);
}

int main() {
myFunction("Julie");
myFunction("Mira");
myFunction("Sanjal");
return 0;
}

Good Morning

Names

Julie,Mira,Sanjal

myFunction

19 / 31

13) What is the output of the following code?

void myFunction() {
printf("I am going for shopping");
}
printf("I love shopping");
int main() {
myFunction();
return 0;
}

I love shopping

I am going for shooping, I love shopping

Error

I am going for shopping

20 / 31

12) The memory address of a variable is stored in which format?

Decimal

Integer

Hexadecimal

Binary

21 / 31

11) To get user input, we must use

Printf()

Scanf()

None

22 / 31

10) What is the output of the code? int main() {
char regards[] = "Nice to meet you";
printf("%c", regards[5]);

return 0;
}

Blank space

23 / 31

What will be the output of the following program #include

int main() {
int i;

for (i = 0; i <= 25; i = i + 5) { printf("%dn", i); } return 0; }

0 5 10 15 20 25

0 6 12 18 24

5 10 15 20 25 30

5 10 15 20

24 / 31

Which loop is used when we know exactly how many times we want to loop through a block of code?

While Loop

For loop

For each loop

All of the above

25 / 31

Which of these operators returns true if both statements are true

AND operator

OR operator

NOT operator

None

26 / 31

Which Keyword is unchangeable and read-only in C?

Int

Const

Char

float

27 / 31

What is the size of variables int, double, char respectively in C language?

8,1,2

2,8,1

1,8,2

None

28 / 31

Which of the following is the Char variable in C?

"d"

<d>

"d";

29 / 31

How many printf() functions can we add in the C language

one

four

two

Infinite

30 / 31

What is #include in C language?

Function

Parameter

HeaderFile Library

Keyword

31 / 31

C language is associated with which operating system?

Unix operating system

Linux operating system

Windows operating

All of the above

Your score is

Author

Barry Allen

A Full Stack Developer with 10+ years of experience in technical content creation.

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Author

Barry Allen

A Full Stack Developer with 10+ years of experience in technical content creation.

View all posts

C Quiz

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