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ISC Class XII Board Specimen 2023 : Computer Science

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ISC 12th
Indian School Certificate Examination (ISC), New Delhi

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COMPUTER SCIENCE PAPER 1 (THEORY) ---------------------------------------------------------------------------------------------------------------- Maximum Marks: 70 Time Allowed: Three hours (Candidates are allowed additional 15 minutes for only reading the paper. They must NOT start writing during this time). --------------------------------------------------------------------------------------------------------------------------- Answer all questions in Part I (compulsory) and six questions from Part-II, choosing two questions from Section-A, two from Section-B and two from Section-C. All working, including rough work, should be done on the same sheet as the The intended marks for questions or parts of questions are given in brackets [ ]. ---------------------------------------------------------------------------------------------------------------- PART I 20 MARKS Answer all questions. While answering questions in this Part, indicate briefly your working and reasoning, wherever required. Question 1 (i) (ii) The law which states a + (b.c) = (a+b) . (a+c) is: (a) Associative Law (b) Distributive Law (c) Involution Law (d) Commutative Law The dual of ( P + P' ) ( Q + 0 ) = Q is: (a) P.P + Q.1 = Q (b) P.P + Q.0 = Q (c) P.P + Q.1 = Q (d) P+P + Q+1 = Q [1] [1] --------------------------------------------------------------------------------------------------------------------ISC SPECIMEN QUESTION PAPER 2023 1

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