III Year

Consider the following variable declarations and definitions in C

i) int var_9 = 1;

ii) int 9_var = 2;

iii) int _ = 3;

• Both i) and iii) are valid.

• Only i) is valid.

• Both i) and ii) are valid.

• All are valid.

Which of the following is true for variable names in C?

• They can contain alphanumeric characters as well as special characters

• It is not an error to declare a variable to be one of the keywords(like goto, static)

• Variable names cannot start with a digit

• Variable can be of any length

Which of the following declaration is not supported by C language?

• String str;

• char *str;

• float str = 3e2;

• Both “String str;” and “float str = 3e2;”

What is an example of iteration in C?

• for

• goto

• break

• int

Functions in C Language are always _________

• Internal

• External

• Both Internal and External

• External and Internal are not valid terms for functions

What is #include <stdio.h>?

• Preprocessor directive

• Inclusion directive

• File inclusion directive

• Console directive

How many number of pointer (*) does C have against a pointer variable declaration?

• 7

• 127

• 202

• No Limit

What is the main function of a compiler in programming?

• To write code

• To interpret code

• To convert code into machine language

• To debug code

What will be the output of the following C program?
#include <stdio.h>
int main() {
printf("Hello, World!");
return 0;
}

• Hello, World!

• Syntax Error

• 0

• Nothing

Which of the following is not a keyword in C?

• int

• char

• include

• float