Computer Network Tutorial

1. Introduction to Computer Networks

1. What is a computer network?
2. Define the term “network topology.”
3. What is the difference between a LAN and a WAN?
4. Explain the term “bandwidth.”
5. What is latency in networking?

2. Network Models

6. What is the OSI model?
7. What is the TCP/IP model?
8. How do the OSI and TCP/IP models differ?
9. What does the term “protocol” mean in networking?

3. Physical Layer

11. What is the primary function of the physical layer?
12. Name three types of physical media used in networking.
13. What is the purpose of a network interface card (NIC)?
14. Explain the difference between guided and unguided transmission media.
15. What is signal attenuation?

4. Data Link Layer

16. What is the main function of the data link layer?
17. Define MAC address.
18. What is Ethernet?
19. Explain the concept of frame in the data link layer.
20. What is the difference between a switch and a hub?

5. Network Layer

21. What is the primary responsibility of the network layer?
22. Define IP address.
23. What is the difference between IPv4 and IPv6?
24. What is subnetting?
25. Explain the purpose of a router.

6. Transport Layer

26. What are the main functions of the transport layer?
27. What is the difference between TCP and UDP?
28. Explain the term “port number.”
29. What is flow control?
30. Define “congestion control.”

7. Application Layer

31. What is the role of the application layer?
32. Name three application layer protocols.
33. What is HTTP?
34. Explain the term “FTP.”
35. What is DNS?

8. Network Security

36. What is network security?
37. Define firewall.
38. What is encryption?
39. Explain the concept of VPN.
40. What is a DDoS attack?

9. Wireless Networks

41. What is a wireless network?
42. Define Wi-Fi.
43. What is Bluetooth?
44. Explain the term “SSID.”
45. What is the difference between 2.4 GHz and 5 GHz Wi-Fi?

10. Network Devices

46. What is a modem?
47. Explain the function of a switch.
48. What is the difference between a router and a gateway?
49. Define access point.
50. What is a bridge?

11. IP Addressing and Subnetting

51. What is a subnet mask?
52. How is an IP address structured?
53. What is CIDR?
54. Explain the purpose of a default gateway.
55. What is NAT?

12. Network Protocols

56. What is a protocol suite?
57. Define ARP.
58. What is ICMP?
59. Explain the purpose of DHCP.
60. What is SNMP?

13. Network Troubleshooting

61. What is the purpose of network troubleshooting?
62. Name three common network troubleshooting tools.
63. Explain the term “ping.”
64. What is traceroute?
65. Define packet sniffing.

14. Network Management

66. What is network management?
67. What is a network management protocol?
68. Explain the term “network monitoring.”
69. What is a network management system (NMS)?
70. Define bandwidth management.

15. Cloud Computing

71. What is cloud computing?
72. Explain the term “SaaS.”
73. What is the difference between IaaS and PaaS?
74. What is cloud storage?
75. Define virtualization.

16. Network Services

76. What is a web server?
77. Define email server.
78. What is a DNS server?
79. Explain the term “proxy server.”
80. What is a DHCP server?

17. Emerging Technologies

81. What is 5G?
82. Define IoT.
83. What is edge computing?
84. Explain the term “blockchain.”
85. What is SDN?

18. Network Performance

86. What is network performance?
87. Define throughput.
88. What is jitter?
89. Explain the term “packet loss.”
90. What is Quality of Service (QoS)?
91. What is MQTT?

20. Network Standards and Organizations

96. What is IEEE?
97. Define the term “RFC.”
98. What is the IETF?
99. Explain the role of the ITU.
100. What is ISO in networking?

Feel free to ask if you need more details or answers for any of these questions!