Computer Science Question Paper - Class XII - Full Marks 70 - Time 3 Hours

Sep 17, 2026

Uploaded by Kurz

Computer Science subject question paper for Class XII with a total of 37 compulsory questions, distributed across five sections (A to E). The paper specifies marks per question by section (1 to 5) and includes general examination instructions such as internal choices and Python-only answers for programming questions. It covers core Python concepts (tuples, functions, exceptions, file handling, stacks, dictionaries), SQL queries and constraints, and basic networking/protocol terminology.

LanguageEnglish

CategoryExam

FormatPDF

Pages8

Reading Time20 min

AccessFree to download

General Instructions

Section A (1 to 21)

Section B (22 to 28)

Section C (29 to 32)

Section D (33 to 34)

Section E (35 to 37)

Sample Question Paper Subject: Computer Science Class-XII Full marks: 70 Time: 3 Hours General Instructions: 1. This Question paper contains 37 questions. 2. All questions are compulsory. However, internal choices have been provided in some questions. Attempt only one of the choices in such questions. 3. The examination paper is divided into 5 sections: Sections A, B, C, D, E. 4. Section A consists of 21 questions (1 to 21) . Each question carries 1 Mark. 5. Section B consists of 7 questions (22 to 28) . Each question carries 2 Marks. 6. Section C consists of 4 questions (29 to 32) . Each question carries 3 Marks. 7. Section D consists of 2 questions (33 to 34) . Each question carries 4 Marks. 8. Section E consists of 3 questions (35 to 37) . Each question carries 5 Marks. 9. All programming questions are to be answered using Python Language only. 10. In case of MCQ, text of the correct answer should also be written. | Q No. | Question | Marks | | --- | --- | --- | | | Section – A (21 x 1 = 21 Marks) | | | 1 | State whether the following statement is True or False:
“An item of a tuple can be easily modified like that of a list item.” | 1 | | 2. | What will be the output of the following statement?
print (256 % 2**2**3//2)
a) 256
b) 0
c) 2
d) 32 | 1 | | 3 | Identify the incorrect statement from the list of statements given below:
(a) print (“a”, 10, end = “*”)
(b) print (“a”, 10, sep = “*”)
(c) print (“a”, end = “*”,10)
(d) print (“a”*10) | 1 | | 4 | Which of the following is a correct way to write a function header?
(a) def area (a,b):
(b) def area (a= 10,b):
(c) def area1 (a=10,):
(d) def area (a,b=10): | 1 | | 5 | An exception is caught in the block and handles in except block. | 1 | | 6 | Can a function modify a global variable without using the
“global” keyword? Explain. | 1 | | 7 | Considering the Python statement:
F= open (“Poem.txt”), in which mode this file is being opened?
(a) Append mode
(b) Write mode
(c) Read mode
(d) Both read and write mode. | 1 | | --- | --- | --- | | 8 | What is the main purpose of a stack data structure?
(a) To store elements in random order
(b) To store elements in FIFO ( First in First Out) order
(c) To store elements in LIFO ( Last In First Out) order
(d) To sort elements automatically. | 1 | | 9 | Assertion (A): Stack underflow occurs when an attempt is made to delete an element from an empty stack.
Reason (R): The pop( ) operation removes the topmost element of a stack.
(a) Both (A) and (R) are true and (R) is the correct explanation of (A)
(b) (A) is true but (R) is false
(c) Both (A) and (R) are true and (R) is not the correct explanation of (A)
(d) (A) is false but (R) is true | 1 | | 10 | How can you access an item in a dictionary? | 1 | | 11 | Which of the following statement is incorrect in the context of binary files?
(a) The csv module is used for reading and writing objects in binary files.
(b) The pickle module is used for reading and writing objects in binary files.
(c) The load ( ) of the pickle module is used to read object.
(d) The dump( ) of the pickle module is used to write object. | 1 | | 12 | Which keyword is used to force an exception?
(a) try
(b) except
(c) raise
(d) finally | 1 | | 13 | Which of the following networking devices is used to regenerate and transmit the weakened signal ahead?
(a) Hub
(b) Repeater
(c) Ethernet card
(d) Modem | 1 | | 14 | Which of the following protocol is used for phone calls over the Internet?
(a) TCP/IP
(b) FTP (c) [HTTP](HTTP)
(d) VolP | 1 | | 15 | Expand ARPANET | 1 | | | | | | --- | --- | --- | | 16 | While creating a table, which constraint does not allow insertion of duplicate values in the table?
(a) UNIQUE
(b) NOT NULL
(c) DEFAULT
(d) None of the above | 1 | | 17 | How is VARCHAR datatype different from CHAR datatype in MySQL? | 1 | | 18 | To run

FAQs

How many questions are in the Computer Science question paper, and are they compulsory?

The paper contains 37 questions, and all questions are compulsory. Internal choices are provided for some questions, where only one choice must be attempted.

Which programming language is required for answering programming questions?

All programming questions must be answered using Python only.

How are questions and marks distributed across the sections A to E?

Section A has 21 questions worth 1 mark each, Section B has 7 questions worth 2 marks each, Section C has 4 questions worth 3 marks each, Section D has 2 questions worth 4 marks each, and Section E has 3 questions worth 5 marks each.

Sep 17, 2026

Uploaded by Kurz