Sub. code 3032
NEB — GRADE X
2083
Model Question
Computer Science Question Paper 2083 (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, 2083 (subject code 3032), 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 correct option from the following and write in your answer sheet.
Which term refers to the maximum data-carrying capacity of a communication channel?
Bandwidth
Throughput
Frequency
Broadband
Why is Bluetooth considered more appropriate than CAT6, Coaxial Cable, and Optical Fiber for short-range wireless device communication?
It uses wired connections for faster communication.
It allows wireless communication between nearby devices.
It is mainly used for long-distance internet connections.
It is used only for television broadcasting.
Which command should a network administrator use to check whether two computers on a network are communicating successfully?
ping
format
compile
merge
Which key uniquely identifies each record in a database table?
Composite key
Primary key
Candidate key
Unique key
Which SQL command is used to retrieve student information from a database table?
INSERT
UPDATE
SELECT
ALTER
Which image file format is commonly used for lossless image compression on the web?
JPG
PNG
MP3
MOV
Which of the following file formats should be used to store a recording of your voice on a computer?
SVG
WAV
GIF
Which keyword is used to define a function in Python?
def
fun
define
function
A student has written the following Python code to check whether a number is even or odd:
num = int(input("Enter a number: "))
if num % 2 == 0:
print("Even")
else: print("Odd")
However, the program shows an error when the user enters a decimal value like 4.5. What is the best modification to make the program more robust?
Replace int() with float() and keep the same condition.
Remove the condition num % 2 == 0.
Use num / 2 == 0 instead of the modulus operator (%).
Remove the input and hardcode the value.
Which is the best practice to reduce bias in AI systems?
Use only one type of data.
Ignore privacy rules.
Use diverse and representative data
Copy outputs without verification
Group 'B'
Answer the following questions briefly.
Differentiate between the Internet and Intranet with any two valid points.
A student has connected a laptop to the internet at home without using any cables. Which technology is being used to transmit data in this situation, and how does it work?
Define a Database Management System (DBMS) and mention one advantage of using it.
Differentiate between raster graphics and vector graphics with any two points.
Write a Python function named area_circle(r) that returns the area of a circle. (Use 3.14)
Write a Python program using try-except to handle ValueError when a user enters a non-numeric value.
A teacher shows exam results only in tables, and students find it hard to understand their performance. How can data visualization help solve this problem? Explain with reasons.
Define supervised learning and unsupervised learning with one point each.
A school uses an AI system to monitor workers and collect their personal information. Briefly explain any two ethical problems that may arise from this practice.
A city is facing problems like traffic congestion and energy wastage. How can the Internet of Things (IoT) help reduce these problems? Suggest any two applications with reasons.
Group C
Answer the following questions in long.
What are the different types of broadband connections? Explain their main features and uses.
Define database and DBMS. Also, explain fields and records with suitable examples.
Describe the major components of multimedia. Explain any two uses of multimedia in education.
Study the following Python program and answer:
import pandas as pd
data = {'Name':['Asha','Bikash','Chandra'],
'Marks':[45,72,60]}
df = pd.DataFrame(data)
print(df[df['Marks']>=60])
a. Write the output of the above Python code.
b. Modify the code to display students who scored less than 60.
A school wants to use AI tools for homework support. Suggest four responsible-use guidelines (privacy, bias, safety, and academic honesty).