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Variables in C Programming
Question 1
What is a variable in C?
- A
A fixed value
- B
A memory location to store data
- C
A keyword
- D
A preprocessor directive
Question 2
Which of the following is the correct way to declare an integer variable in C?
- A
x int;
- B
int x;
- C
integer x;
- D
x = int;
Question 3
What is the default value of a local variable in C?
- A
0
- B
Garbage Value
- C
NULL
- D
Undefined
Question 4
What is the scope of a variable declared inside a function?
- A
Global
- B
Block
- C
Function
- D
File
Question 5
Which data type would you use to store a single character in C?
- A
int
- B
char
- C
string
- D
float
Question 6
Which of the following statements is true about global variables?
- A
They are only accessible inside one function
- B
Their lifetime ends after the function ends
- C
They are declared inside main()
- D
They are accessible throughout the program
Question 7
What happens if you use an undeclared variable in C?
- A
It gets initialized to 0
- B
Program runs with a warning
- C
The compiler assigns memory automatically
- D
Compilation error
Question 8
What will be the value of a in the end?
int a = 5;
int b = a;
b = 10;
- A
5
- B
10
- C
0
- D
Garbage Value
Question 9
Which variable will have the highest scope?
- A
Variable declared inside a loop
- B
Variable declared inside a function
- C
Static variable
- D
Global variable
Question 10
Which keyword tells the compiler to look for a variable’s definition elsewhere?
- A
extern
- B
static
- C
register
- D
const
There are 13 questions to complete.