C Basics

Which of the following is not a valid C keyword?

• if

• while

• do..while

• main()

Which of the following is a valid way to declare a variable in C?

• char name;

• float number1;

• int 1number;

• double 2value;

What is the output of the following code: printf("%d", 5 + 3);?

• Error

• 5

• 8

• 53

Which of the following operators is used for logical AND in C?

• !

• &&

• ||

• &

int x = 10;

if (x > 5) {

printf("Hello");

} else {

printf("World");

}

What will be the output?

• Hello

• World

• HelloWorld

• Error

What will be the output of the following code: printf("%f", 3.14);?

• 314

• 3.140000

• Error

• 3.14

Which of the following is a valid way to define a function in C?

• function myFunction() {}

• void myFunction;

• int myFunction() {}

• myFunction() int {}

What is the result of the expression 5 == 5 in C?

• True

• False

• 0

• 1

What is the primary purpose of a for loop?

• To make a decision based on a condition

• To run a block of code a specific number of times

• To execute code at least once

• • To exit a program

Which loop is guaranteed to execute its body at least once?

• for loop

• While loop

• do-while loop

• if statement