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Fundamentals of C Language

⛪ Programming Language > C Programming Language

In this section we will discuss MCQ questions about fundamentals of C programming language.

➲ Fundamentals of C Language - Quiz

Q 1: Before execution compiler converts high-level program into machine language program, the machine language program is called

A Source program
B Object program
C exe program
D None of this

Q 2: C

A System Programming
B Application Programming
C Both A and B
D Neither A nor B

Q 3: Write a function to swaps the values of two integers.

A No solution exist.
B Solution need 2 extra variables
C Solution exist without any extra variables
D Solution need 1 extra variable

Answer: C

Solution c Solution exist without any extra variables

void swap(int a, int b)
{
int c;
c=a;
a=b;
b=c;
}

void swap (int a, int b)
{

a=a+b;

b=a-b;

a=a-b;

}

Solution2 is the best solution since no extra variable is required.

Q 4: Which of the following language is predecessor to C Programming Language?

A A
B BTYU
C BCPL
D C++

Q 5: C was developed in the year ___

A 1970
B 1972
C 1976
D 1975

Q 6: C language is available for which of the following Operating Systems?

A DOS
B Windows
C Unix
D All of these

Q 7: Which of the following symbol is used to denote a pre-processor statement?

Q 8: What is the output of the following C code?


#include <stdio.h>

int main() {
    int x = 5;
    printf("%d", x++);
    return 0;
}

A 5
B 6
C 4
D The code will result in a compile error

Q 9: Which of the following is not a valid data type in C?

A char
B int
C float
D string

Q 10: What is the output of the following C code?


#include <stdio.h>

int main() {
    int x = 5;
    if (x > 10) {
        printf("x is greater than 10");
    }
    else {
        printf("x is less than or equal to 10");
    }
    return 0;
}

A x is greater than 10
B x is less than or equal to 10
C The code will result in a runtime error
D The code will result in a compile error

Q 11: What is the output of the following C code?


#include <stdio.h>

int main() {
    int i = 0;
    while (i < 5) {
        printf("%d ", i);
        i++;
    }
    return 0;
}

A 0 1 2 3 4
B 1 2 3 4 5
C 5 4 3 2 1
D The code will result in an infinite loop

Q 12: What is the output of the following C code?


#include <stdio.h>

int main() {
    int arr[] = {1, 2, 3, 4, 5};
    printf("%d", *(arr + 2));
    return 0;
}