Computer Class 8 Annual Exam 2024-25

 

Section A: Choose the Correct Option

1. Which of the following is a use of computer networking?
a) Communication
b) High reliability
c) Resource sharing
d) All of these (✔️ Correct Answer: d)

2. Any computer connected to the network is called:
a) Node (✔️ Correct Answer)
b) ISP
c) Link
d) DNS

3. A networking device that forwards data packets between computer networks is called:
a) Gateway
b) Hyperlink
c) Router (✔️ Correct Answer)
d) Switch

4. In your school, computers are connected through:
a) LAN (✔️ Correct Answer)
b) WAN
c) MAN
d) PAN

5. Which of the following is a circular topology?
a) Star topology
b) Bus topology
c) Ring topology (✔️ Correct Answer)
d) Tree topology

Section A: Choose the Correct Option

1. Which of the following is NOT an example of cloud computing?
a) Dropbox
b) Google Drive
c) iCloud 
d) None of these (✔️ Correct Answer: d)

2. These are the collections of servers where an application is placed and accessed via the Internet:
a) Client Computers
b) Data Centres
c) Distributed Servers (✔️ Correct Answer)
d) All of these

3. This type of cloud allows services to be shared by a group of organizations:
a) Public Cloud
b) Community Cloud (✔️ Correct Answer)
c) Private Cloud
d) Hybrid Cloud

4. AT&T Hosting & Storage, Rackspace, and Amazon EC2 are examples of:
a) IaaS (✔️ Correct Answer)
b) SaaS
c) PaaS
d) None of these

Section A: Choose the Correct Option

1. Which domain enables AI systems to analyze images, videos, and other visual data?
a) Data
b) Computer Vision (✔️ Correct Answer)
c) Big Data
d) NLP

2. In which year did IBM's chess-playing computer defeat world chess champion Garry Kasparov?
a) 1956
b) 1970
c) 1959
d) 1997 (✔️ Correct Answer)

3. Which component is focused on creating a progressive work environment in a smart city framework?
a) Smart Infrastructure (✔️ Correct Answer)
b) Smart Governance
c) Smart Living
d) Smart Mobility

4. _______ performs the work with learning capabilities to handle high volumes and repetitive tasks.
a) Robotic Process Automation (✔️ Correct Answer)
b) Robotic Automation Process
c) Automation Process Robotic
d) None of these

5. Which of the following can inspect and store a person's face or iris?
a) RPA
b) Biometrics (✔️ Correct Answer)
c) Alexa
d) Chatbot

6. Which mathematician is considered the father of theoretical computer science?
a) John McCarthy
b) Marvin Minsky
c) Alan Turing (✔️ Correct Answer)
d) Seymour Papert

Section B: Write T for True and F for False Statements

1. An algorithm should have 1 or more well-defined inputs. → T
2. Flowchart is a graphical method of designing programs. → T
3. Algorithms are used for calculation and data processing only. → F
4. In a Flowchart, a circle symbol indicates that the flow continues on another page. → T
5. Flowchart provides clarity of relationships among various processing steps. → T

Section B: Write T for True and F for False Statements

1. The extension of Python files is .pn → F (Correct extension is .py)
2. Python can be used to build Artificial Intelligence Algorithms. → T
3. The result of not(8<10 and 22<20) is True. → T
   • Explanation: 8 < 10 is True, 22 < 20 is False → True and False is False.
     Applying not(False), we get True.
4. for loop allows a part of the code to be repeated unlimited number of times. → F (It runs for a specified range or until a condition is met.)
5. The input 12345 returns "not a palindrome." → T (Since 12345 is not the same when reversed.)

Section B: Write T for True and F for False Statements

1. We download Apps from the Google Play Store if we are iPhone users. → F (iPhone users download apps from the Apple App Store.)
2. A web portal is a specially designed website that often serves as the single point of access for information. → T
3. Gmail, Hotmail, Picasa, Flickr are examples of PaaS. → F (These are examples of SaaS - Software as a Service.)
4. The widely known CATV (Community Antenna Television) networks are examples of MAN. → T
5. We cannot improve colors by automated tools in GIMP. → F (GIMP provides several tools for color correction and enhancement.)

Short Question Answer (2 Marks Each) for Class 8

(A) Algorithms and Flowcharts

1. What is an algorithm?

   • An algorithm is a step-by-step procedure or set of rules to solve a specific problem.

2. What is a flowchart?

   • A flowchart is a graphical representation of an algorithm using symbols to show the sequence of steps.

3. What are the main characteristics of a good algorithm?

   • A good algorithm should be clear, efficient, well-defined, finite, and produce correct output.

4. Name any two symbols used in a flowchart and their purpose.

   • Oval (Start/End) – Represents the beginning or end of a flowchart.
   • Parallelogram (Input/Output) – Represents input or output operations.

(B) Programming Languages - Basics of Python

5. What is Python?

   • Python is a high-level, interpreted programming language known for its simplicity and readability.

6. What is the extension of a Python file?

   • The extension of a Python file is .py.

7. What are variables in Python?

   • Variables are named storage locations used to store values in a Python program.

8. What is the difference between input() and print() in Python?

   • input() is used to take user input, while print() is used to display output.

9. What is indentation in Python?

   • Indentation in Python refers to spaces or tabs at the beginning of a line to define blocks of code, such as loops and functions.

(C) Computer Networks

10. What is a computer network?

    • A computer network is a group of interconnected computers that communicate with each other to share resources.

11. Name two types of networks.

    • LAN (Local Area Network) – Covers a small area like a school or office.
    • WAN (Wide Area Network) – Covers large geographical areas, such as the Internet.

12. What is the function of a router in networking?

    • A router directs data packets between different networks and connects multiple devices to the Internet.

13. What is an IP address?

    • An IP address is a unique numerical label assigned to each device in a network for identification and communication.

(D) Cloud Computing

14. What is cloud computing?

    • Cloud computing is an Internet-based service that provides computing resources like storage, databases, and applications.

15. Give two examples of cloud computing services.

    • Google Drive (for storage) and Amazon Web Services (AWS) (for cloud computing).

16. What are the three main types of cloud computing services?

    • IaaS (Infrastructure as a Service), PaaS (Platform as a Service), SaaS (Software as a Service).

(E) AI - History, Domains, Applications, and Ethics

17. Who is considered the father of Artificial Intelligence?

    • John McCarthy is considered the father of AI.

18. What are the five domains of AI?

    • Computer Vision, Machine Learning, Natural Language Processing (NLP), Robotics, and Expert Systems.

19. Mention two real-life applications of AI.

    • Virtual assistants (Siri, Alexa) and Self-driving cars (Tesla Autopilot).

20. What is AI ethics?

    • AI ethics refers to moral guidelines and rules for the responsible development and use of artificial intelligence.

Full-Form Related Questions (20 Questions – 1 Marks Each)

(A) Algorithms and Flowcharts

1. What is the full form of IPO in the context of algorithms?

   • Input-Process-Output

2. What does the full form of PDL stand for in programming?

   • Program Description Language

(B) Programming Languages - Basics of Python

3. What is the full form of IDLE in Python?

   • Integrated Development and Learning Environment

4. What is the full form of GUI?

   • Graphical User Interface

5. What does HTML stand for?

   • HyperText Markup Language

6. What is the full form of SQL?

   • Structured Query Language

7. What is the full form of API in programming?

   • Application Programming Interface

(C) Computer Networks

8. What is the full form of LAN?

   • Local Area Network

9. What is the full form of WAN?

   • Wide Area Network

10. What does Wi-Fi stand for?

    • Wireless Fidelity

11. What is the full form of IP in IP Address?

    • Internet Protocol

12. What does URL stand for?

    • Uniform Resource Locator

13. What is the full form of DNS?

    • Domain Name System

14. What does HTTP stand for?

    • HyperText Transfer Protocol

(D) Cloud Computing

15. What is the full form of SaaS in cloud computing?

    • Software as a Service

16. What is the full form of PaaS in cloud computing?

    • Platform as a Service

17. What is the full form of IaaS?

    • Infrastructure as a Service

(E) AI - History, Domains, Applications, and Ethics

18. What is the full form of AI?

    • Artificial Intelligence

19. What does NLP stand for in AI?

    • Natural Language Processing

20. What is the full form of ML in AI?

    • Machine Learning

Basic Computer Shortcut Keys (10 Important Shortcuts)

1. Ctrl + C → Copy
2. Ctrl + V → Paste
3. Ctrl + X → Cut
4. Ctrl + Z → Undo
5. Ctrl + Y → Redo
6. Ctrl + S → Save
7. Ctrl + P → Print
8. Ctrl + A → Select All
9. Alt + Tab → Switch Between Open Applications
10. Windows + D → Show Desktop

Fill in the Blanks questions on Python basics related to loops, if-else, and functions for Class 8:

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1. A __________ loop is used to execute a block of code repeatedly as long as a condition is true.
   Answer: while

2. The __________ statement is used to check multiple conditions in an if-else structure.
   Answer: elif

3. The __________ function is used to display output on the screen.
   Answer: print()

4. The __________ function is used to take input from the user in Python.
   Answer: input()

5. A __________ loop is used when we know the number of iterations in advance.
   Answer: for

6. The __________ keyword is used to define a function in Python.
   Answer: def

7. A function in Python can return a value using the __________ statement.
   Answer: return

8. The __________ statement is used to stop the execution of a loop.
   Answer: break

9. The __________ statement is used to skip the current iteration in a loop and move to the next iteration.
   Answer: continue

10. The __________ block is executed when none of the if or elif conditions are true.
    Answer: else

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