CBSE Class 12 Marking Scheme 2022 for Computer Science

Marking Scheme Class: XII Session: 2021-22 Computer Science (Code 083) 1 d. pass 2 b. tuple 3 d. (40,60) 4 b. if we try to read a text file that does not exist, the file gets created. 5 c. myfile = open('Myfile.txt'); myfile.readline() 6 d. myfile.readlines() 7 c. both iii and iv 8 a. string 9 d. / 10 b. tup1[2] = 20 11 c. Every line ends with a new line character 12 b. tells the current position of the file pointer within the file 13 b. pickling is used for object serialization 14 a. 0 15 d. Both a and c 16 d. def cal_si(p, r=8, t=2) 17 a. my_func() 18 c. , 19 d. EOL Translation is suppressed 20 b. Comma Separated Values 21 a. read() 22 c. .py 23 d. # 24 a. with open('record.bin','wb') as myfile: pickle.dump(lst1,myfile) 25 b. The keys of a dictionary can be accessed using values 26 c. 200 27 b. 4 28 d. 15.0 29 c. 2345678 30 c. 36 31 b. 3 32 b. dump(tup1, myfile) 33 c. continue 34 d. None 35 c. 18 36 d. 250 300 37 b. 50#5 38 b. Mumbai#Chennai#Kolkata#Mumbai# 39 b. 5#8#5#4# 40 c. 26 41 b. pYTHOnN#@ 42 d. 27

43 b. 3 44 d. 3 5 5 45 b. 7 46 a. 2 47 b. School/Academics/syllabus.jpg 48 b. list 49 b. (1,2,[1,3.14],3) 50 c. csv 51 b. "Student.csv","w" 52 c. writer(fh) 53 d. roll_no,name,Class,section 54 c. rec 55 c. writerows()