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11th Standard English Medium Computer Science Subject Functions Book Back 2 Mark Questions with Solution updated Book back Questions

Published on: 13/05/2022

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Download Tamil Nadu 11th Standard Computer Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 11th Standard - Computer Science

chapter: - Book back Questions

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Questions:

Generic 2

5 x 2 = 10

Write a note on Local Scope.

What is Parameter and list its types?

What are importance of void data type.

Write about strlen() function.

Define Functions.

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Answers Key:

Generic 2

5 x 2 = 10

(i) A local variable is defined within a block. A block of code begins and ends with curly braces { }.
(ii) The scope of a local variable is the block in which it is defined.
(iii) A local variable cannot be accessed from outside the block of its declaration.
(iv) A local variable is created upon entry into its block and destroyed upon exit

Arguments or parameters are the means to pass values from the calling function to the called function. The variables used in the function definition as parameters are known as formal parameters. The constants, variables or expressions used in the function call are known as actual parameters.
Types : Default arguments and Constant Arguments.

Void type has two important purposes:
(I) To indicate the function does not return a value
(ii) To declare a generic pointer

The strelen() takes a null terminated byte string source as its argument and returns its length. The length does not include the null(\0) character.

A large program can typically be split into small subprograms (blocks) called as functions where each sub-program can perform some specific functionality. Functions reduce the size and complexity of a progrann, makes it easier to understand, test, and check for errors.