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⭐ Very Short Answer Questions
Q1. What is a Computer Network?
Answer: A computer network is a collection of interconnected computers that share resources and information.
Q2. What is PAN?
Answer: PAN stands for Personal Area Network.
Q3. What is LAN?
Answer: LAN stands for Local Area Network.
Q4. What is MAN?
Answer: MAN stands for Metropolitan Area Network.
Q5. What is WAN?
Answer: WAN stands for Wide Area Network.
Q6. What is a Hostname?
Answer: A hostname is the unique name assigned to a computer on a network.
Q7. What is an IP Address?
Answer: An IP Address is a unique numerical address assigned to devices connected to a network.
Q8. What does IP stand for?
Answer: Internet Protocol.
Q9. What is IPv4?
Answer: IPv4 is the fourth version of Internet Protocol that uses 32-bit addresses.
Q10. What is IPv6?
Answer: IPv6 is the sixth version of Internet Protocol that uses 128-bit addresses.
Q11. What is MAC Address?
Answer: MAC Address is the unique physical address of a network device.
Q12. What is NIC?
Answer: NIC stands for Network Interface Card.
Q13. What is a Hub?
Answer: A Hub is a networking device that connects multiple computers.
Q14. What is a Switch?
Answer: A Switch is a networking device that forwards data to the correct destination.
Q15. What is a Router?
Answer: A Router connects different networks and routes data packets.
Q16. What is an Access Point?
Answer: An Access Point allows wireless devices to connect to a network.
Q17. What is TCP?
Answer: TCP stands for Transmission Control Protocol.
Q18. What is HTTP?
Answer: HTTP stands for Hyper Text Transfer Protocol.
Q19. What is HTTPS?
Answer: HTTPS is the secure version of HTTP.
Q20. What is FTP?
Answer: FTP stands for File Transfer Protocol.
Q21. What is DHCP?
Answer: DHCP automatically assigns IP addresses to devices.
Q22. What is SSID?
Answer: SSID is the name of a wireless network.
Q23. What is Encryption?
Answer: Encryption converts readable data into coded form for security.
Q24. What is SMTP?
Answer: SMTP stands for Simple Mail Transfer Protocol.
Q25. What is POP?
Answer: POP stands for Post Office Protocol.
π Short Answer Questions
Q26. Define Computer Network.
Answer: A computer network is a system of interconnected computers and devices that communicate and share resources with each other.
Q27. Write any four advantages of Computer Networks.
Answer:
- Resource Sharing
- Fast Communication
- Data Sharing
- Cost Saving
Q28. Differentiate between LAN and WAN.
Answer:
LAN covers a small area whereas WAN covers a large geographical area.
Q29. What is the use of IP Address?
Answer: IP Address uniquely identifies devices on a network and enables communication.
Q30. What is the purpose of MAC Address?
Answer: MAC Address uniquely identifies a network interface card.
Q31. Explain NIC.
Answer: NIC is a hardware component that allows a computer to connect to a network.
Q32. What is the function of a Router?
Answer: A Router forwards data packets between different networks.
Q33. What is the role of a Switch?
Answer: A Switch sends data only to the intended device within a network.
Q34. What is the difference between HTTP and HTTPS?
Answer: HTTPS provides secure communication using encryption whereas HTTP does not.
Q35. Why is Encryption important?
Answer: Encryption protects data from unauthorized access and improves security.
Q36. What is DHCP?
Answer: DHCP automatically assigns IP addresses to devices on a network.
Q37. What is SSID?
Answer: SSID is the name used to identify a wireless network.
Q38. What is FTP used for?
Answer: FTP is used to transfer files between computers over a network.
Q39. What is TCP/IP?
Answer: TCP/IP is a suite of communication protocols used on the Internet.
Q40. What is an Access Point?
Answer: An Access Point provides wireless access to a network.
π Long Answer Questions
Q41. Explain the different types of Computer Networks.
Answer:
Computer networks are classified into:
- PAN (Personal Area Network): Covers a very small area around an individual.
- LAN (Local Area Network): Covers a small geographical area such as a school, office or home.
- MAN (Metropolitan Area Network): Covers a city or metropolitan area.
- WAN (Wide Area Network): Covers a large geographical area such as countries and continents.
Q42. Explain IP Address and its types.
Answer:
An IP Address is a unique numerical address assigned to each device connected to a network.
Types:
- IPv4: Uses 32-bit addressing.
- IPv6: Uses 128-bit addressing.
IPv6 provides a much larger address space than IPv4.
Q43. Differentiate between IPv4 and IPv6.
| IPv4 |
IPv6 |
| 32-bit address |
128-bit address |
| Limited addresses |
Huge number of addresses |
| Example: 192.168.1.1 |
Example: 2001:db8::1 |
| Older version |
Latest version |
Q44. Explain MAC Address.
Answer:
MAC Address stands for Media Access Control Address. It is a unique physical address assigned to a Network Interface Card (NIC) by the manufacturer and is used for communication within a local network.
Q45. Explain the role of Network Interface Card (NIC).
Answer:
NIC is a hardware component that enables a computer to connect to a network. It provides a physical interface between the computer and the communication medium.
Q46. Explain Hub, Switch and Router.
- Hub: Broadcasts data to all devices connected to it.
- Switch: Sends data only to the intended device.
- Router: Connects different networks and forwards packets between them.
Q47. Explain HTTP and HTTPS.
HTTP: Hyper Text Transfer Protocol is used for transferring web pages over the Internet.
HTTPS: Hyper Text Transfer Protocol Secure is the secure version of HTTP that uses encryption to protect data.
Q48. Explain FTP.
FTP (File Transfer Protocol) is a protocol used for transferring files between computers connected to a network.
It allows users to upload and download files from remote servers.
Q49. Explain DHCP.
DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses and other network configuration settings to devices connected to a network.
Q50. Explain SSID.
SSID (Service Set Identifier) is the name assigned to a wireless network. It helps users identify and connect to the correct Wi-Fi network.
Q51. Explain Encryption and its importance.
Encryption converts readable information into coded form to protect it from unauthorized access.
Importance:
- Protects sensitive data.
- Improves security.
- Prevents unauthorized access.
- Ensures privacy.
Q52. Explain the advantages of Computer Networks.
- Resource Sharing
- Data Sharing
- Fast Communication
- Cost Reduction
- Remote Access
- Centralized Management
Q53. Explain TCP/IP Protocol Suite.
TCP/IP is a collection of communication protocols used on the Internet.
- TCP: Ensures reliable transmission of data.
- IP: Handles addressing and routing.
Together they enable communication between computers over networks.
Q54. Explain POP and SMTP.
- POP (Post Office Protocol): Used to receive emails.
- SMTP (Simple Mail Transfer Protocol): Used to send emails.
These protocols are commonly used in email communication.
Q55. Explain the need for Computer Networks.
Computer networks are needed for:
- Sharing information.
- Sharing hardware resources.
- Communication.
- Remote access.
- Collaboration.
- Internet connectivity.
π€ Viva Questions
1. What is a Computer Network?
Answer: A collection of interconnected computers.
2. What is PAN?
Answer: Personal Area Network.
3. What is LAN?
Answer: Local Area Network.
4. What is MAN?
Answer: Metropolitan Area Network.
5. What is WAN?
Answer: Wide Area Network.
6. What is IP Address?
Answer: Unique numerical address of a device.
7. What is IPv4?
Answer: 32-bit Internet Protocol.
8. What is IPv6?
Answer: 128-bit Internet Protocol.
9. What is MAC Address?
Answer: Physical address of a NIC.
10. What is NIC?
Answer: Network Interface Card.
11. What is a Hub?
Answer: Device that broadcasts data.
12. What is a Switch?
Answer: Device that forwards data intelligently.
13. What is a Router?
Answer: Connects multiple networks.
14. What is DHCP?
Answer: Dynamic Host Configuration Protocol.
15. What is HTTP?
Answer: Hyper Text Transfer Protocol.
16. What is HTTPS?
Answer: Secure version of HTTP.
17. What is FTP?
Answer: File Transfer Protocol.
18. What is SSID?
Answer: Name of a Wi-Fi network.
19. What is Encryption?
Answer: Converting data into coded form.
20. Which protocol is used to send emails?
Answer: SMTP.
✍ Fill in the Blanks
1. A __________ is a collection of interconnected computers.
Answer: Computer Network
2. PAN stands for __________ Area Network.
Answer: Personal
3. LAN stands for __________ Area Network.
Answer: Local
4. MAN stands for __________ Area Network.
Answer: Metropolitan
5. WAN stands for __________ Area Network.
Answer: Wide
6. IP stands for Internet __________.
Answer: Protocol
7. IPv4 uses __________ bit addresses.
Answer: 32
8. IPv6 uses __________ bit addresses.
Answer: 128
9. MAC stands for Media Access __________.
Answer: Control
10. NIC stands for Network Interface __________.
Answer: Card
11. A __________ connects multiple networks together.
Answer: Router
12. __________ forwards data only to the destination device.
Answer: Switch
13. HTTP stands for Hyper Text Transfer __________.
Answer: Protocol
14. FTP stands for File Transfer __________.
Answer: Protocol
15. SMTP is used for __________ emails.
Answer: Sending
16. POP is used for __________ emails.
Answer: Receiving
17. DHCP automatically assigns __________ addresses.
Answer: IP
18. SSID is the name of a __________ network.
Answer: Wireless
19. Encryption converts readable data into __________ form.
Answer: Coded
20. HTTPS is the __________ version of HTTP.
Answer: Secure
✅ True / False
1. A LAN covers a small geographical area.
Answer: True
2. WAN covers a smaller area than LAN.
Answer: False
3. IPv4 uses 32-bit addresses.
Answer: True
4. IPv6 uses 64-bit addresses.
Answer: False
5. Every device on a network requires an IP address.
Answer: True
6. MAC Address is assigned by the manufacturer.
Answer: True
7. NIC helps a computer connect to a network.
Answer: True
8. A Hub sends data only to the intended device.
Answer: False
9. A Switch is smarter than a Hub.
Answer: True
10. Router connects different networks.
Answer: True
11. HTTP is a secure protocol.
Answer: False
12. HTTPS provides encrypted communication.
Answer: True
13. FTP is used for transferring files.
Answer: True
14. SMTP is used to receive emails.
Answer: False
15. POP is used to receive emails.
Answer: True
16. DHCP assigns IP addresses automatically.
Answer: True
17. SSID identifies a Wi-Fi network.
Answer: True
18. Encryption improves data security.
Answer: True
19. IPv6 provides more addresses than IPv4.
Answer: True
20. Computer networks cannot share resources.
Answer: False
π― Most Important Exam Questions
Q1. Explain the different types of Computer Networks.
Q2. Differentiate between PAN, LAN, MAN and WAN.
Q3. Explain IP Address and its importance in networking.
Q4. Differentiate between IPv4 and IPv6.
Q5. What is MAC Address? Explain its purpose.
Q6. Explain the role of Network Interface Card (NIC).
Q7. Differentiate between Hub, Switch and Router.
Q8. Explain the working of a Router.
Q9. Explain TCP/IP Protocol Suite.
Q10. Differentiate between HTTP and HTTPS.
Q11. Explain FTP and its uses.
Q12. Explain POP and SMTP protocols.
Q13. What is DHCP? Explain its importance.
Q14. What is SSID? Explain its purpose.
Q15. Explain Encryption and its importance in network security.
Q16. Write the advantages of Computer Networks.
Q17. Explain the need for Computer Networks.
Q18. Explain the concept of Hostname.
Q19. Explain Wireless Networking with examples.
Q20. Explain the major networking devices used in a computer network.
⚡ Last Minute Revision Questions
1. What is a Computer Network?
15. What is Access Point?
π₯ Exam Focus Topics
- Types of Computer Networks (PAN, LAN, MAN, WAN)
- IP Address and Hostname
- IPv4 and IPv6
- MAC Address
- Network Interface Card (NIC)
- Hub, Switch and Router
- Access Point
- TCP/IP Protocol Suite
- HTTP and HTTPS
- FTP Protocol
- POP and SMTP
- DHCP
- SSID
- Encryption and Network Security
- Advantages of Computer Networks
- Need for Computer Networks
π HSLC Revision Tip
Before the exam, focus on network types, IP Address, MAC Address, Hub, Switch, Router, TCP/IP, HTTP vs HTTPS, FTP, POP, SMTP and Encryption. These topics are frequently asked in school examinations and HSLC preparation tests.
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