Name of the Board : Central Board of Secondary Education (CBSE)
Class : XII STD
Document Type : Sample Question Paper
Subject : Computer Science
Year : 2022-23
Website : https://cbseacademic.nic.in/SQP_CLASSXII_2022-23.html
CBSE XII Computer Science Sample Question Paper
CBSE Students can download the Computer Science Sample Question Paper for the year 2022-23 from the website of CBSE Academic.
Related / Similar Question Paper : CBSE Academic Class XII Chemistry Sample Question Paper 2022-23
Computer Science Sample Question Paper
SECTION A
1. State True or False
“Variable declaration is implicit in Python.”
2. Which of the following is an invalid datatype in Python?
(a) Set
(b) None
(c)Integer
(d)Real
3. Given the following dictionaries dict_exam={“Exam”:”AISSCE”, “Year”:2023} dict_result={“Total”:500, “Pass_Marks”:165} Which statement will merge the contents of both dictionaries?
a. dict_exam.update(dict_result)
b. dict_exam + dict_result
c. dict_exam.add(dict_result)
d. dict_exam.merge(dict_result)
4. Consider the given expression: not True and False or True Which of the following will be correct output if the given expression is evaluated?
(a) True
(b) False
(c) NONE
(d) NULL
5. Select the correct output of the code:
a = “Year 2022 at All the best”a = a.split(‘2’) b = a[0] + “. ” + a[1] + “. ” + a[3] print (b)
(a) Year . 0. at All the best
(b) Year 0. at All the best
(c) Year . 022. at All the best
(d) Year . 0. at all the best
6. Which of the following mode in file opening statement results or generates an error if the file does not exist?
(a) a+
(b) r+
(c) w+
(d) None of the above
7. Fill in the blank:
______ command is used to remove primary key from the table in SQL.
(a) update
(b)remove
(c) alter
(d)drop
8. Which of the following commands will delete the table from MYSQL database?
(a) DELETE TABLE
(b) DROP TABLE
(c) REMOVE TABLE
(d) ALTER TABLE
9. Which of the following statement(s) would give an error after executing the following code?
S=”Welcome to class XII” # Statement 1
print(S) # Statement 2
S=”Thank you” # Statement 3
S[0]= ‘@’ # Statement 4
S=S+”Thank you” # Statement 5
(a) Statement 3
(b) Statement 4
(c) Statement 5
(d) Statement 4 and 5
10. Fill in the blank:
_________ is a non-key attribute, whose values are derived from the primary key of some other table.
(a) Primary Key
(b) Foreign Key
(c) Candidate Key
(d) Alternate Key
11. The correct syntax of seek() is:
(a) file_object.seek(offset [, reference_point])
(b) seek(offset [, reference_point])
(c) seek(offset, file_object)
(d) seek.file_object(offset)
12. Fill in the blank:
The SELECT statement when combined with __________ clause, returns records without repetition.
(a) DESCRIBE
(b) UNIQUE
(c) DISTINCT
(d) NULL
13. Fill in the blank:
______is a communication methodology designed to deliver both voice and multimedia communications over Internet protocol.
(a) VoIP
(b) SMTP
(c) PPP
(d)HTTP
14. What will the following expression be evaluated to in Python? print(15.0 / 4 + (8 + 3.0))
(a) 14.75
(b)14.0
(c) 15
(d) 15.5
15. Which function is used to display the total number of records from
table in a database?
(a) sum(*)
(b) total(*)
(c) count(*)
(d) return(*)
Download CBSE XII Computer Science Question Paper
Download CBSE XII Computer Science Question Paper Here :
https://www.pdfquestion.in/uploads/pdf2022/41032.pdf