Learn C MCQs
Prepare C MCQs (Multiple choice Questions) for exam and job interviews.
Which of the following is a preprocessor directive in C?
1) #define
2) #include
3) #ifdef
4) All of the above
Answer : Option 4
Which of the following is a correct declaration of a function pointer?
1) int (*func)();
2) int func*();
3) func* int();
4) None of the above
Answer : Option 1
What will be the output of the following code: printf("%d", 4 + 5 * 2);?
1) 14
2) 13
3) 9
4) Error
Answer : Option 1
Which of the following statements is used to return a value from a function in C?
1) return; value;
2) return value;
3) return(value);
4) None of the above
Answer : Option 2
What does the keyword `volatile` indicate in C?
1) The variable can change unexpectedly.
2) The variable will not change.
3) The variable is not initialized.
4) None of the above
Answer : Option 1
Which function is used to copy a string in C?
1) strcopy()
2) strcpy()
3) copy()
4) strdup()
Answer : Option 2
What is the correct way to initialize a structure in C?
1) struct name = {value1, value2};
2) struct name {value1, value2};
3) struct name = (value1, value2);
4) None of the above
Answer : Option 1
Which of the following correctly represents a multi-dimensional array?
1) int arr[2][3];
2) int arr(2,3);
3) int arr[2,3];
4) None of the above
Answer : Option 1
Which function returns a pointer to the first occurrence of a character in a string?
1) strchr()
2) strstr()
3) strfind()
4) strindex()
Answer : Option 1
What will be the output of printf("%d", 5 | 2);?
1) 3
2) 7
3) 5
4) 1
Answer : Option 2