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PRACTICE PAPER 2
CLASS XI
COMPUTER SCIENCE (CODE 083)

Time Allowed: 3 hrs 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 × 1 = 21 Marks)

1. State whether the following statement is True or False. (1)
Phishing is a type of cybercrime where criminals impersonate legitimate entities to steal sensitive
information.
2. Identify the output of the following code snippet. (1)
nums = list(range(15, 35, 5))
print(nums)
(a) [15, 20, 25, 30] (b) [15, 20, 25, 30, 35]
(c) [15, 20, 25, 35] (d) [20, 25, 30, 35]
3. 1 TB = .......................... KB. (1)
4. .......................... and .......................... gates are called universal gates. (1)
5. What is the default value of an uninitialized variable in Python? (1)
(a) False (b) 0
(c) None (d) Undefined

6. Convert the following. (1)
(725) = ( )16
8
7. Which of the following is a valid identifier in Python? (1)
(a) _Numval (b) 2Fact
(c) RollNo. (d) Star@Title
8. Which of the following malware is a self-replicating virus that exploits security vulnerabilities to
automatically spread itself across computers and networks? (1)
(a) Trojan (b) Botnet
(c) Adware (d) Worm
9. Which of the following is a utility software? (1)
(a) Adobe Photoshop (b) WinRAR
(c) Microsoft Word (d) Google Chrome
10. What is the output of the following expression? (1)

(30+ 7) * 3 > 15 and (9 * 2) <= 50
(a) True (b) False
(c) Error (d) None

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