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Class 12 CBSE Sample paper with solutions 2018 : Computer Science

35 pages, 36 questions, 0 questions with responses, 0 total responses,

Ram S Kaushik
Hindu Colony Chellammal Vidyalaya, Chennai

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Aglasem Schools 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 (a) What is the role of a parameter/argument passed in a function? Can a default value be No. Q1. 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 Page No. 1 1

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