Sub. code 3022
NEB — GRADE X
Set D
Model Question
Computer Science Question Paper Set D (Model Question)
The candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Pass Marks : 20
सबै प्रश्नको उत्तर दिनुहोस् । (Attempt All Questions)
This model question question paper is for Class 10 Computer Science, Set D (subject code 3022), carrying full marks of 50 with a pass mark of 20, to be completed within 2 Hours. Answers with step-by-step solutions are available for every question below.
Group "A'
Choose the best answer from the given alternatives.
Which of the following is an example of a full-duplex communication mode?
Walkie-talkie
Television broadcasting
Telephone conversation
Keyboard to computer
Which network device connects multiple computers within a LAN and forwards data to the intended device?
Modem
Switch
Repeater
Gateway
Which SQL clause is used to filter records according to a specified condition?
ORDER BY
GROUP BY
WHERE
SELECT
Which of the following is a valid example of a database management system?
MySQL
Python
Photoshop
VLC Player
Which multimedia element is mainly responsible for presenting spoken explanations or background music?
Text
Audio
Graphics
Animation
What will be the output of the following Python code?
x = 4
y = 5
print(x + y * 2)18
14
13
20
Which Python function is used to find the number of items in a list?
count()
length()
size()
len()
Which type of AI is designed to create new content such as text, images, or audio?
Generative AI
Narrow AI
Expert System
Rule-based AI
Which technology allows users to store and access files through internet-based servers?
Cloud Computing
Virtual Reality
Bluetooth
GPS
Which of the following is an important principle for responsible use of AI?
Sharing private data freely
Using AI without verification
Protecting user privacy
Ignoring AI-generated errors
Group 'B'
Answer the following questions briefly.
What is network topology? Differentiate between star and bus topology.
What is Bluetooth? Mention any two applications of Bluetooth.
What is a relational database? Mention any two features of a relational database.
What is the purpose of the ORDER BY clause in SQL? Write one example.
Differentiate between lossy and lossless compression.
Write a Python program to calculate the factorial of a number using a while loop.
What is a list in Python? Write an example of a list containing five numbers.
What is Computer Vision? Mention any one application.
What is Virtual Reality (VR)? Mention any two applications of VR.
What is cyber ethics? Write any two responsible practices for using digital technologies.
Group 'C'
Answer the following questions in detail.
What is a computer network? Explain the following types of networks based on geographical coverage:
a. PAN
b. LAN
c. MAN
d. WAN
Consider the following table named Student:
Student_ID | Name | Class | GPA |
|---|---|---|---|
201 | Anil | 10 | 3.45 |
202 | Sarita | 10 | 3.80 |
203 | Rohan | 10 | 3.20 |
Answer the following:
a. Which field should be the primary key? Why?
b. Write an SQL command to display students having GPA greater than 3.40.
c. Write an SQL command to change Rohan's GPA to 3.50.
d. Write an SQL command to display all students in descending order of GPA.
What is multimedia? Explain the importance of audio, video, graphics, and animation in education with suitable examples.
Study the following Python program and answer the questions:
numbers = [10, 20, 30, 40, 50]
total = 0
for n in numbers:
total = total + n
print("Total =", total)a. What is the name of the list used in the program?
b. How many elements are present in the list?
c. What will be the output of the program?
d. Modify the program to calculate and display the average of the numbers.
Modern technologies such as AI, IoT, cloud computing, and VR are becoming common in daily life.
a. What is IoT?
b. Explain any two applications of IoT.
c. What is cloud computing?
d. Mention one advantage and one ethical concern related to the use of AI.