C programming review Quiz

Which of the following is the correct syntax to print in C?

• A. print("Hello");

• B. echo("Hello");
  

• 
  C. printf("Hello");
  

• 
  D. cout << "Hello"

What is the correct header file to use printf() and scanf()?

• A. <conio.h>
  

• B. <stdio.h>

• 
  C. <string.h>
  

• 
  D. <stdlib.h>

What is the default return type of a function if not specified in C?

• A. void
  

• 
  B. char
  

• 
  C. int
  

• 
  D. float

Which of the following is a correct variable name in C?

• A. value_1
  

• 
  B. value#
  
  

• C. 1value
  

• 
  D. @value

Which loop checks the condition after executing the loop body?

• A. for
  

• 
  B. while
  

• 
  C. switch

• 
  D. do...while ✅
  

Which data type is used to store a single character?

• A. int

• 
  B. char

• 
  C. float

• 
  D. string

What is the value of x after this code?

int x = 5;

x += 2;

• 
  A. 7 ✅
  

• B.10

• 
  C. 5
  

• 
  D. 2

What does \n represent in C?

• A. Space
  

• 
  B. Tab
  

• 
  C. Null
  

• 
  D. New line

What is the purpose of return 0; in the main() function?

• A. Tells the program to repeat
  

• 
  B. Tells the OS the program ended successfully
  

• 
  C. Causes an error

• 
  D. Initializes variables

What symbol is used to end a statement in C?

• :

• }

• ;

• >