Learn C MCQs
Prepare C MCQs (Multiple choice Questions) for exam and job interviews.
What is the default return type of functions in C if not specified?
1) void
2) float
3) int
4) char
Answer : Option 3
Which of the following is used to exit a loop in C?
1) stop
2) end
3) break
4) exit
Answer : Option 3
Which of the following is the bitwise AND operator in C?
1) &&
2) &
3) |
4) and
Answer : Option 2
Which function is used to copy a string in C?
1) copy()
2) strcat()
3) strcpy()
4) string_copy()
Answer : Option 3
Which function is used to compare two strings in C?
1) strcat()
2) strcomp()
3) compare()
4) strcmp()
Answer : Option 4
What is the correct syntax to define a function in C?
1) function return_type(parameters)
2) function_name return_type()
3) return_type function_name(parameters)
4) None of the above
Answer : Option 3
Which keyword is used to prevent a variable from being modified?
1) static
2) const
3) volatile
4) register
Answer : Option 2
What is the output of the expression 10 % 3?
1) 3
2) 0
3) 1
4) 10
Answer : Option 3
What is the correct syntax to declare a two-dimensional array in C?
1) int arr(5,5);
2) int arr[5,5];
3) int arr[5][5];
4) None of the above
Answer : Option 3
What is the output of printf("%d", 5 == 5);?
1) 1
2) True
3) 5
4) 0
Answer : Option 1