Variables in C Quiz

What is a variable in C?

• A function in C

• A type of loop in C

• A way to represent memory location through symbols

• A reserved keyword in C

Which of the following is a rule for defining variables in C?

• Variable names can contain special characters like @, #, $

• Variable names must start with a digit

• Variable names are case-insensitive

• Variable names cannot be the same as C keywords

What is the syntax for declaring a variable in C?

• variable_name data_type;

• data_type variable_name;

• variable_name = data_type;

• data_type = variable_name;

Which type of variable retains its value between multiple function calls in C?

• Static variable

• Automatic variable

• Global variable

• Local variable

What is the process of reserving memory space for a variable in C?

• Variable Initialization

• Variable Declaration

• Variable Definition

• Variable Assignment

Which type of variable is declared outside the function or block in C?

• Global variable

• Static variable

• Local variable

• Automatic variable

What is the default type of variables declared inside a block in C?

• Automatic variable

• Static variable

• Global variable

• Local variable

What is the purpose of an external variable in C?

• To share a variable in multiple C source files

• To store temporary data in a program

• To define a variable with a specific data type

• To declare a variable inside a function

Which keyword is used to declare an external variable in C?

• static

• auto

• extern

• global

What is the syntax for defining a variable and initializing it with a value in C?

• 10 = int x;

• int = x 10;

• x = 10 int;

• int x = 10;