Viva Questions - Class 8 - Networks
Viva Questions — Networks
Be Confident, Be Prepared, Shine in Your Viva! This comprehensive guide contains 20 essential Viva Questions and Answers for your Networks practical exam. Read carefully, understand each answer, practice speaking aloud, and you'll ace your oral test!
Introduction
A Viva (Viva Voce) is an oral examination where your teacher tests your knowledge through spoken questions. Networks viva questions cover the basics, devices, protocols, and real-world applications.
In this article, you'll find the 20 most common viva questions with clear, well-explained answers, plus tips to perform confidently.
Motivational Tip
Networks are all around us — from your home Wi-Fi to the Internet you're using right now. Confidence comes from understanding, and you already use networks every day!
What is a Network?
A Network is a group of computers and devices connected together to share data, resources, and information.
Key Points to Remember
Network Essentials
- ✅ Connects devices.
- ✅ Shares resources & data.
- ✅ Improves communication.
- ✅ Access information easily.
- ✅ Types: LAN, MAN, WAN, PAN.
- ✅ Uses Internet for global connection.
Types of Networks (Quick Recap)
| Type | Full Form | Coverage |
|---|---|---|
| LAN | Local Area Network | Home, school, office |
| MAN | Metropolitan Area Network | City |
| WAN | Wide Area Network | World (Internet) |
| PAN | Personal Area Network | Personal devices |
20 Viva Questions and Answers
Question 1
What is a Network?
Answer: A network is a group of computers and devices connected together to share data and resources.
Question 2
What is the full form of LAN?
Answer: LAN stands for Local Area Network.
Question 3
What is the full form of WAN?
Answer: WAN stands for Wide Area Network.
Question 4
What is the largest network in the world?
Answer: The largest network in the world is the Internet, which is a WAN (Wide Area Network).
Question 5
Name any 3 network devices.
Answer: Router, Switch, and Hub are three common network devices.
Question 6
What is the function of a Router?
Answer: A router connects different networks and forwards data between them. For example, it connects your home network to the Internet.
Question 7
What is a Node?
Answer: A node is any device connected to a network, such as a computer, printer, or smartphone.
Question 8
What is TCP/IP?
Answer: TCP/IP stands for Transmission Control Protocol / Internet Protocol — it is a set of rules for data communication over the Internet.
Question 9
What is an IP Address?
Answer: An IP Address is a unique number that identifies each device on a network. Example: 192.168.1.1.
Question 10
What is the difference between LAN and WAN?
Answer:
- LAN covers a small area like a home or school.
- WAN covers a large area like a country or the whole world.
Question 11
What is a Server?
Answer: A server is a powerful computer that provides services (files, email, websites) to other computers called clients.
Question 12
What is a Client?
Answer: A client is a device that requests services from a server. Example: Your laptop accessing Google is a client requesting from Google's server.
Question 13
What is Wi-Fi?
Answer: Wi-Fi is a wireless technology used to connect devices to a network without cables. It uses radio waves.
Question 14
What is the full form of NIC?
Answer: NIC stands for Network Interface Card — the hardware that connects a computer to a network.
Question 15
Name the types of Network Topology.
Answer: The types are Bus, Star, Ring, Mesh, and Tree topology.
Question 16
Which topology is most reliable?
Answer: Mesh topology is the most reliable because every device is connected to every other device — if one path fails, data can take another route.
Question 17
What is a Modem?
Answer: A modem is a device that connects your network to the Internet. It converts digital signals to analog and vice versa.
Question 18
What is the use of DNS?
Answer: DNS (Domain Name System) is used to translate domain names (like google.com) into IP addresses that computers understand.
Question 19
What is Firewall?
Answer: A firewall is a security system that protects the network from unauthorized access and cyber attacks.
Question 20
Where is network used in real life?
Answer: Networks are used in homes, schools, offices, banks, hospitals, airlines, and of course, the Internet — everywhere in modern life!
Popular Network Devices (Quick Reference)
| Device | Function |
|---|---|
| Router | Connects different networks; forwards data |
| Switch | Connects devices within a LAN |
| Hub | Broadcasts data to all connected devices |
| NIC | Connects a computer to the network |
| Modem | Connects your network to the Internet |
| Firewall | Protects network from unauthorized access |
Best Practices for Internet Safety
Safety Tips
- 🔒 Use strong passwords.
- 🙅 Never share personal information.
- 🛡️ Use antivirus and firewall.
- 🌐 Only visit trusted websites.
- 🚪 Log out from shared devices.
- 👀 Be careful with suspicious emails.
- 📱 Keep software updated.
- 👨👩👧 Ask parents for guidance.
Tips for Your Viva
Before the Viva
Preparation Tips
- 📖 Read the chapter thoroughly.
- 📝 Practice these 20 questions aloud.
- 💡 Understand concepts, don't just memorize.
- 🎯 Prepare examples for each concept.
- 🖥️ Recall your practical activities.
- 😴 Get a good night's sleep.
- 🍎 Eat a healthy meal.
- 🎒 Bring notebook and pen.
During the Viva
Confidence Tips
- 😊 Smile and greet politely.
- 👂 Listen carefully to the question.
- 💭 Take a moment to think.
- 🎤 Speak clearly and confidently.
- 👀 Maintain eye contact.
- 🎯 Give short, focused answers.
- 📝 Give examples when possible.
- 🙏 If you don't know, say "I'm not sure, sir/ma'am" — don't guess.
- 💪 Stay calm if you make a mistake.
- 🙌 Thank the teacher at the end.
Common Mistakes to Avoid
Don't Do These!
- ❌ Don't memorize word-for-word — understand.
- ❌ Don't panic if you forget — take a breath.
- ❌ Don't argue if teacher corrects you.
- ❌ Don't give overly long answers.
- ❌ Don't fidget or look nervous.
- ❌ Don't answer without listening fully.
- ❌ Don't make up answers.
- ❌ Don't forget to greet and thank.
Bonus Viva Questions (Extra Practice)
Additional Questions
- Q. What is a Switch? → Device that connects devices in a LAN and sends data to correct device.
- Q. What is a Hub? → Device that broadcasts data to all connected devices.
- Q. What is the difference between Wired and Wireless network? → Wired uses cables (Ethernet), Wireless uses Wi-Fi/radio waves.
- Q. What is HTTP? → HyperText Transfer Protocol — used for websites.
- Q. What is HTTPS? → Secure version of HTTP with encryption.
- Q. What is Bandwidth? → Amount of data that can be transferred per second.
- Q. What is a Protocol? → Rules for communication between devices.
- Q. What is a URL? → Uniform Resource Locator — address of a webpage.
- Q. What is ISP? → Internet Service Provider — company providing Internet.
- Q. What are the advantages of a network? → Sharing, communication, cost saving, access to info.
Did You Know?
Fun Fact
The Internet was invented in the 1960s! Vint Cerf and Robert Kahn are known as the "Fathers of Internet". Their invention of TCP/IP protocol made the modern Internet possible.
Sample Viva Conversation
Teacher: "Good morning! Can you tell me
what a network is?"
You: "Good morning, ma'am. A network is
a group of computers and devices connected together to
share data and resources."
Teacher: "Very good! Can you name some
types of networks?"
You: "Yes, ma'am. The main types are
LAN (Local Area Network), MAN (Metropolitan Area Network),
WAN (Wide Area Network), and PAN (Personal Area Network)."
Teacher: "Excellent! Give me an example
of a LAN."
You: "Our school computer lab is an
example of a LAN, ma'am."
Teacher: "Well done!"
FAQs About Networks Viva
Q1. What topics are covered in Networks viva?
Basic definitions, types of networks, network devices, protocols, security, and real-life applications.
Q2. Should I know all abbreviations?
Yes! Common ones: LAN, WAN, MAN, PAN, NIC, DNS, IP, TCP, HTTP, HTTPS, ISP, URL.
Q3. What if I confuse LAN and WAN?
Remember: L = Local (small like your home). W = Wide (whole world like Internet).
Q4. Do I need to remember all network devices?
Focus on the main 5: Router, Switch, Hub, NIC, Modem. Know their function in one line.
Q5. What if I don't understand a technical term?
Politely say: "I remember it's related to networks, but I'm not sure of the exact details."
Q6. How to explain protocols simply?
Say: "Protocols are rules that computers follow to communicate with each other."
Q7. What if the teacher asks about my practical?
Describe what you did step-by-step. Recall the practical activity you completed.
Q8. What's a good general answer if I'm unsure?
"That's a good question. Based on my understanding..." then answer as best you can.
Key Takeaways
- Network = connected devices sharing data.
- 4 types: LAN, MAN, WAN, PAN.
- Main devices: Router, Switch, Hub, NIC, Modem.
- 5 topologies: Bus, Star, Ring, Mesh, Tree.
- Server provides services; Client receives services.
- IP address identifies devices; DNS translates names.
- Firewall protects; Wi-Fi is wireless.
- Practice speaking aloud before viva.
- Understand concepts, don't just memorize.
- Stay confident, speak clearly, smile!
Key Takeaway
Networks connect the world! They help us
share information, communicate, learn, and grow together!
You've now prepared for 20 essential viva questions.
Remember to be confident, be prepared, and shine
in your viva! Show your teacher what you've
learned about the amazing world of computer networks.
Remember: Learn Today, Lead Tomorrow!
Keep Exploring, Keep Growing! 🌱
⭐ CONNECTING DEVICES, SHARING WORLD! ⭐
Best of Luck! Practice more, understand
better, and build a strong foundation for your bright
future! 👍😊
Flowchart → Visual Thinking → Smart Solutions → Better
Results! 🚀
Home & Online Tuition
Learn from an experienced tutor with personalized guidance.
Available Locations
Expert Home & Online Tuition
Personalized one-to-one tuition that focuses on concept building, practical learning, problem-solving skills, and excellent academic performance. Suitable for school students looking for structured, interactive, and result-oriented learning.
Subjects We Teach
Why Choose Our Tuition?
✅ Concept-Based Learning
✅ Practical Examples
✅ Weekly Tests
✅ Doubt Solving Sessions
✅ Practice Worksheets
✅ MCQ & Assignments
✅ Exam Preparation
✅ Flexible Class Timings