12th Class Computer Science Chapter 13 Short Questions with Answers Online Preparation

Question # 1

What is function Header?

Ans 1: The first line of function definition is called the function header i.e
Return_type Function
It Consists of three parts:
- The type of the return value.
- The name of the function
- The parameters of the function enclosed in parentheses

Question # 2

Define function prototype.

Ans 1: A Function prototype is a statement that provides the basic information that the compiler needs to check and use a function correctly. It specifies the parameters to be passed to the function,the function name , and type of the return value.
The general form of the function prototype is as follows:
return _ type FunctionName (paramete_list)
The prototype for a function which is called form another function must appear before the function call statement.Function prototypes are usually placed at the beginning of the source file just before the function header of the main function.

Question # 3

What do you mean by function call?

Ans 1: Function call is mechanism that is used to invoke a function to perform a specific task. A function call can be invoked at any point in the program. In C the function name,the arguments and the statement terminator( ;) are specified to invoke a function call .
When function call statement is executed , it transfer control to the function that is called.The memory is allocated to variables declared in the function and then the statements in the function body are executed. After the last statement in the function is executed, control returns to the calling function.

Question # 4

Describe Built in Function.

Ans 1: Built in Function: built in function are predefined functions that provide us convenient ways to perform variety of tasks. Theses functions are packaged in libraries.Through these function we can easily access complex programming functionally. We should not reinvent the wheel. All that we need to do is just making a function call and the rest of the task is performed by the called function

Question # 5

Difference between Function Definition and Function Declaration:

Ans 1: Function Definition:
- A function definition provides the actual body of the function.
Syntax:
Return_type
FunctionName
(Parameter_list)
{
Body of the function
}
Ans 2: Function Declaration::
- A function declaration introduces the function name and its type. A function definition associates the function name/type with the function body.
Syntax:
Return_type FunctionName
(Parameter_list)
{
Executable Statement(s)
return expression:
}

Question # 6

Define function declaration with its syntax .

Ans 1: Function declaration: Function declaration introduces the function name and its type. A function definition associates the function name/type with the function body.
Syntax:
Return_type FunctionName (parameter_list)
{
Executable Statements(s)
return expression;
}

Question # 7

What are the two types of functions in C language?

Ans 1: There are two types of function in C language.
- Built-in Function
- User-defined Function

Question # 8

What is Function?

Ans 1: Function definition provides the actual body of the function.
Syntax:
Return_ttype FunctionName (parameter_list)
{
body of the function
}

Question # 9

How long the global variable exists in the memory ?

Ans 1: The lifetime of global variable is until the termination of the program. They exist in memory from the start to the end of the program.

Question # 10

Define local variable.

Ans 1: All variables that we have declared so far are declared within a block - that is, within the extent of a pair of curly braces. These are called local variables is form the point in the program where it is declared until the end of the block containing its declaration .

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ICS Part 2 Computer Science Chapter 13 Short Questions Test With Answer

Online Short Questions For Chapter 13 "ICS Part 2 Computer Science Chapter 13 Short Questions Preparation "

Computer Science - ICS Part 2 Computer Science Chapter 13 Short Questions Preparation

What is function Header?

Define function prototype.

What do you mean by function call?

Describe Built in Function.

Difference between Function Definition and Function Declaration:

Define function declaration with its syntax .

What are the two types of functions in C language?

What is Function?

How long the global variable exists in the memory ?

Define local variable.

Prepare Complete Set Wise Questions For Chapter 13 "ICS Part 2 Computer Science Chapter 13 Short Questions Preparation "

Set 1

ICS Part 2 Computer Science Chapter 13 Short Questions Preparation - Set 1

What is function Header?

Define function prototype.

What do you mean by function call?

Describe Built in Function.

Difference between Function Definition and Function Declaration:

Define function declaration with its syntax .

What are the two types of functions in C language?

What is Function?

How long the global variable exists in the memory ?

Define local variable.

12th Computer Science Chapter 13 Preparation

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