Page 68 - PYTHON-11

PRACTICE PAPER 1
CLASS XI
COMPUTER SCIENCE (CODE 083)
Time: 3 Hours Maximum Marks: 70

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 paper is divided into 5 Sections—A, B, C, D and 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 3 questions (29 to 31). Each question carries 3 Marks.
7. Section D consists of 4 questions (32 to 35). Each question carries 4 Marks.
8. Section E consists of 2 questions (36 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.

Section A (21 X 1 = 21 Marks)
1. State whether the following statement is True or False. [1]
In a nested while loop, a while loop is defined inside another while loop.
2. Which of the following correctly defines a list in Python? [1]
(a) list = {1, 2, 3} (b) list = [1, 2, 3]
(c) list = (1, 2, 3) (d) list = 1, 2, 3
3. Which of the following holds the data and instructions that are currently being used by the CPU? [1]
(a) ROM (b) Cache (c) RAM (d) Control Unit
4. What is the output of the expression: [1]
not (True or False)
(a) False (b) True (c) None (d) Error
5. What will list1.extend([4, 5]) do to list1 = [1, 2, 3]? [1]
(a) Add a sublist at the end (b) Create a new list
(c) Add elements 4 and 5 to the list (d) Remove the last item
6. Convert the following. [1]
(255) = ( )
10 8
7. Which of the following is an invalid identifier in Python? [1]
(a) classes (b) Class10 (c) class_name (d) class
8. What is the term for copying someone’s work and passing it off as your own without credit? [1]
(a) Encryption (b) Piracy (c) Plagiarism (d) Decryption
9. What is the correct order in the memory hierarchy from fastest to slowest? [1]
(a) Register → RAM → Cache → Hard Disk (b) Cache → Register → RAM → Hard Disk
(c) Hard Disk → RAM → Cache → Register (d) Register → Cache → RAM → Hard Disk
10. What will be the output of the following expression? [1]
>> 10 - 3 * 2 + 1 * 8 % 2
(a) 0 (b) 14 (c) 4 (d) 8
11. What is the full form of IPR? [1]
(a) Internet Property Rules (b) Intellectual Property Rights
(c) Internal Program Regulation (d) Integrated Privacy Rights