Learn C MCQs
Prepare C MCQs (Multiple choice Questions) for exam and job interviews.
Which of the following is the correct way to define an array of pointers in C?
1) int *arr[10];
2) int arr*;
3) int *arr();
4) None of the above
Answer : Option 1
What is the output of printf("%d", 6 % 4);?
1) 2
2) 1
3) 0
4) 6
Answer : Option 1
Which of the following statements is true regarding arrays in C?
1) Array index starts from 0.
2) Arrays can hold different data types.
3) Arrays must have a fixed size.
4) Both 1 and 3
Answer : Option 4
What will be the output of printf("%d", sizeof(char));?
1) 1
2) 2
3) 4
4) Depends on the system
Answer : Option 1
Which of the following is used to include header files in C?
1) #include
2) #define
3) import
4) require
Answer : Option 1
What is the output of printf("%d", 10 % 3);?
1) 1
2) 2
3) 3
4) 0
Answer : Option 1
Which of the following is a user-defined data type in C?
1) struct
2) enum
3) union
4) All of the above
Answer : Option 4
Which function is used to convert a string to a float in C?
1) atof()
2) strtof()
3) float()
4) None of the above
Answer : Option 1
What will be the output of printf("%d", 5 + 3 * 2);?
1) 16
2) 11
3) 10
4) 8
Answer : Option 2
Which of the following is used to define a constant in C?
1) #define
2) const
3) Both 1 and 2
4) None of the above
Answer : Option 3