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

Question # 1

Described user-defined function.

Ans 1: Built-in function are not sufficient for solving every kind of problem . A programmer may need to write his/her own functions depending on the nature of problem being solved.
Such functions are called user-defined functions.

Question # 2

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 # 3

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 # 4

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 .

Question # 5

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 # 6

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 # 7

Write down the scope of global variables.

Ans 1: Scope of Global Variables: They are accessible from the point where they are declared until end of the file containing them. It means they are visible throughout all the functions in the file, following their point of declaration. The life time of global variable is until the termination of the program. They exist in memory from the start to the end of the program.

Question # 8

Differentiate between Local and Global Variable:

Ans 1: Local Variable: 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 .
Ans 2: Global Variable: The variable which are declared outside all blocks i.e outside the main ( ) and all other functions,. The scope of a global variable is form the point where they are declared until end of the file containing

Question # 9

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 # 10

What is Function?

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

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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

Described user-defined function.

Define function declaration with its syntax .

Difference between Function Definition and Function Declaration:

Define local variable.

What are the two types of functions in C language?

Define function prototype.

Write down the scope of global variables.

Differentiate between Local and Global Variable:

What do you mean by function call?

What is Function?

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

Described user-defined function.

Define function declaration with its syntax .

Difference between Function Definition and Function Declaration:

Define local variable.

What are the two types of functions in C language?

Define function prototype.

Write down the scope of global variables.

Differentiate between Local and Global Variable:

What do you mean by function call?

What is Function?

12th Computer Science Chapter 13 Preparation

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