MEcp1LABwth230

What is a C header file used for?

• Storing data

• Storing function definitions and macro declarations

• Declaring main function

• For file management

What is the extension for C header files?

• .cpp

• .hdr

• .c

• .h

What directive is used to include a header file in a C program?

• #define

• #include

• #ifdef

• #undef

Which header file is required for using the printf() function?

• stdlib.h

• stdio.h

• conio.h

• math.h

What does the %d format specifier represent in printf()?

• Floating-point number

• String

• Integer

• Character

What will printf("%f", 3.14); output?

• 3.14

• 3

• 3.140000

• Error

Which format specifier is used to print a character in C?

• %s

• %d

• %f

• %c

Which of the following is not a format specifier?

• %d

• %i

• %lf

• %p

Which function is used to read input from the user in C?

• printf

• scanf

• gets

• putchar

What is the correct syntax for using scanf() to input an integer into a variable x?

• scanf("%d", &x);

• scanf("%d", x);

• scanf("%d", *x);

• scanf("%f", &x);