C Programming: Input and Output

What is the purpose of the 'printf' function in C programming?

• The purpose of the 'printf' function is to read user input.

• The purpose of the 'printf' function is to print formatted output.

• The purpose of the 'printf' function is to perform mathematical calculations.

• The purpose of the 'printf' function is to create loops in the program.

Which header file should be included to use the 'scanf' function in C programming?

• string.h

• stdio.h

• math.h

• stdlib.h

What is the format specifier for printing an integer in decimal format using 'printf'?

• %s

• %i

• %f

• %d

How do you read a character from the user using 'scanf'?

• scanf('%d', &ch)

• scanf('%s', &ch)

• scanf('%f', &ch)

• scanf("%c", &ch)

What is the purpose of the 'getchar' function in C programming?

• To read a single character from the standard input and return its hexadecimal value.

• To read a single character from the standard input and return its Unicode value.

• To read a single character from the standard input and return its binary value.

• To read a single character from the standard input and return its ASCII value.

What is the format specifier for printing a floating-point number using 'printf'?

• %f

• %d

• %s

• %c

How do you read a string from the user using 'scanf'?

• scanf(str);

• scanf("%s", str);

• scanf('%s', str);

• scanf(str, '%s');

What is the purpose of the 'puts' function in C programming?

• The purpose of the 'puts' function in C programming is to display output on the console.

• The purpose of the 'puts' function in C programming is to declare variables.

• The purpose of the 'puts' function in C programming is to perform mathematical calculations.

• The purpose of the 'puts' function in C programming is to take user input.

What is the format specifier for printing a character using 'printf'?

• %c

• %f

• %s

• %d

Which of the following is a valid way to accept user input in the form of an integer value and store it in a variable named entry?

• scanf(%d, &entry);

• scanf("%s", &entry);

• scanf("%d", &entry);

• scanf(%s, &entry);