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CBSE Class 12 Sample / Model Paper 2021 : Computer Science (with Marking Scheme / Solutions)

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Class: XII Session: 2020-21 Computer Science (083) Sample Question Paper (Theory) Maximum Marks: 70 Time Allowed: 3 hours General Instructions: 1. This question paper contains two parts A and B. Each part is compulsory. 2. Both Part A and Part B have choices. 3. Part-A has 2 sections: a. Section I is short answer questions, to be answered in one word or one line. b. Section II has two case studies questions. Each case study has 4 case-based subparts. An examinee is to attempt any 4 out of the 5 subparts. 4. Part - B is Descriptive Paper. 5. Part- B has three sections a. Section-I is short answer questions of 2 marks each in which two question have internal options. b. Section-II is long answer questions of 3 marks each in which two questions have internal options. c. Section-III is very long answer questions of 5 marks each in which one question has internal option. 6. All programming questions are to be answered using Python Language only Question Part-A Marks No. allocated Section-I Select the most appropriate option out of the options given for each question. Attempt any 15 questions from question no 1 to 21. 1 Find the invalid identifier from the following a) MyName b) True 1 c) 2ndName d) My_Name 2 Given the lists L=[1,3,6,82,5,7,11,92] , write the output of print(L[2:5]) 1 3 Write the full form of CSV. 1 4 Identify the valid arithmetic operator in Python from the following. 1 a) ? b) < c) ** d) and Page 1 of 11

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