CBSE: Check CBSE Class 12 Computer Science Sample Paper 2021 & CBSE Class 12 Computer Science Marking Scheme 2021 for upcoming CBSE board exam 2021 preparation. CBSE has recently released Sample Paper for Computer Science & other subjects. Students preparing for CBSE Class 12 Computer Science board exam 2021 are advised to download & study these resources for the preparation of upcoming CBSE Class 12 Computer Science board exam 2021.
Also Check: Deleted CBSE Class 12 Syllabus 2020-21: Applicable for CBSE Academic Session 2020-21!
CBSE Class 12 Computer Science Sample Paper 2021:
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 sub- parts. 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
Part-A
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
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])
3. Write the full form of CSV.
4. Identify the valid arithmetic operator in Python from the following.
a) ?
b) <
c) **
d) and 1
5. Suppose a tuple T is declared as T = (10, 12, 43, 39), which of the following is incorrect?
a) print(T[1])
b) T[2] = -29
c) print(max(T))
d) print(len(T))
6. Write a statement in Python to declare a dictionary whose keys are 1, 2, 3 and values are Monday, Tuesday and Wednesday respectively.
7. A tuple is declared as
T = (2,5,6,9,8)
What will be the value of sum(T)?
8. Name the built-in mathematical function / method that is used to return an absolute value of a number.
9. Name the protocol that is used to send emails.
10. Your friend Ranjana complains that somebody has created a fake profile on Facebook and defaming her character with abusive comments and pictures. Identify the type of cybercrime for these situations.
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