CBSE Class 12 Computer Science Answer Key 2021 – 2022 – The Central Board of Secondary Education (CBSE) held the class 12th Computer Science Term 1 test on December 21, 2021. In order to analyze the OMR sheet, the CBSE Board produces an answer key for CBSE Class 12. The unofficial CBSE board answer key is available on third-party websites.
Ques. Find the invalid identifier from the following:
Ans. break
Ques. Which of the following is the function/ method of the pickle module?
Ans. load()
Ques. For a given declaration in Python as a s=”WELCOME”. What is the correct output of print (S[1:2])?
Ans. ECM
Ques. Which of the following statements is not correct?
Ans. We can write content into a text file opened using ‘r’ mode.
Ques. Which of the following options is the correct Python statement to read and display the first 10 characters of a text file “Notes.txt”?
Ans. F = open (‘Notes.txt’) ; print (F.read(10))
Ques. Which of the following options is the correct Python statement to open text file “Notes. Txt” to write content into it?
Ans. F = open (‘Notes.txt’, ‘A’)
Ques. A text file open using the following statement:
MyFile = Open (‘Notes.txt’). Which of the following is the correct Python statement to close it?
Ans. MyFile.close()
Ques. Which of the following options is the correct for the tell( ) of a file object?
Ans. It returns the byte position of the file pointer as an integer
Ques. Which of the following is an incorrect Logical operator in Python?
Ans. in
Ques. Give the Python decoration S1 = “Hello”. Which of the following statements will give an error?
Ans. S1 [4] = ‘Y’
Ques. Which of the following statements is incorrect in the context of pickled binary files?
Ans. csv module is used for reading and writing objects in binary files.
Ques. What is the significance of the seek( ) method?
Ans. It places the file pointer at a desired offset within the file.
Ques. Which of the following is correct expansion of csv?
Ans. Comma Separated Values.
Ques. If the following statement is used to read the contents of a textile object F: x= F.readlines ( )
Ans. list
Ques. Which of the following is not correct in context of positional and default parameters in Python functions?
Ans. Positional parameters must occur to the right of Default parameters
Ques. For a function header as follows: Def Calc (X, Y=20)
Which of the following function calls will give an error?
Ans. Calc (X=25)
Ques. Which of the following is not correct in context of scope of variables?
Ans. local keyword is used to change value of a local variable in global scope.
Ques. Which of the following is the default character for newline parameter for a csv file object opened in write mode in Python IDLE?
Ans. ,
Ques. Which of the following is the correct output for the execution of the following Python statement? print (5 + 3 ** 2/2)
Ans. 9.5
Ques. Which of the following is not a Tuple in Python?
Ans. (10 , )
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FAQs
No, the solution key will only be offered as a point of reference. It’s a good way to double-check their responses.
Official information should be kept up to date, or you can use the resources indicated on this page.
There is no negative marking
On the official CBSE website.
The answer key will be released by CBSE in PDF format. Students must download it
Students have to add +1 marks for each correct answer, no marks will deduct in the examination for any wrong answer.