Page 18 - C++

MARKING SCHEME

Subject: Computer Science
Class: XII (2017-18)

Time: 3 Hrs. M.M.:70

Instructions:

(a) All questions are compulsory,
(b) Answer either Section A or Section B:

(i) Section A - Programming Language with C++
(ii) Section B - Programming Language with Python

(c) Section C is compulsory.

SECTION – A (C++)
Q. Part Question Description Marks

No.
Q1. (a) What is the role of a parameter/argument passed in a function? Can a default value be 2

assigned to a parameter(Yes/No)? If yes, justify your answer with the help of a suitable

example otherwise give reason.
Ans Parameters/arguments are values passed in the function for the attributes which are

required by the function to work and provide desired output.

Yes, an argument may be assigned a default value.
E.g.

int Sum(int a, int b=10) //Here b is given a default value of 10
{ return (a+b); }

void main()
{

int x=5;

- cout<<Sum(x);
}

Output: 15

(1 mark for correct role of parameter)

(1/2 mark for correct answer)
(1/2 mark for giving correct example)

(b) Raman suggests Kishan the following header files which are required to be included in 1

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