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CBSE XII Pre Boards 2015 : COMPUTER SCIENCE (KV Kolkata)

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Kendriya Vidyalaya No.1 Salt Lake
Kendriya Vidyalaya (KV) No. 1, Salt Lake
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KendriyaVidyalayaSangathan Kolkata Region Third Pre-Board Examination : 2014-15 Please check that this question paper contains 7 questions. Please write down the Serial Number of the question before attempting it. 15 minutes time has been allotted to read this question paper. The students will read the question paper only and will not write any answer on the answer-book during this period. COMPUTERSCIENCE Time allowed : 3 hours Class : XII Maximum Marks : 70 Note : (i) All questions are compulsory. (ii) Answer the questions after carefully reading the text. 1. (a) What is the difference between local variable and global variable ? Also, 2 give a suitable C++ code to illustrate both. (b) Name the inbuilt function and the related header file that is used to 1 change lower case to upper case letter. (c) Aashu has just started working as a programmer in ZENITH SOFTWARE Company. In the company she has got her first assignment to be done using a C++ to reverse words of a string individually. But she has committed some mistakes while writing the code and is not getting the desired result. Rewrite the correct code underlining the corrections done. 2 For example, if user enter : computer science it should display : retupmocecneics #include<iostream.h> #include<string.h> void main( ){ inti, k = 0; char str[80]; word[80]; cout<< Enter any string (max. 80 chars) <<endl; gets(str); strcat(str, ); for(i=0; str[i]!= \0 ;i++){ Page 1 of 11

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Additional Info : KV Sangathan, Kolkata Region COMPUTER SCIENCE Pre-Board
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