Network Fundamentals: Intro to LAN (TryHackMe)

In this article, we’ll cover the Introduction to LAN room on TryHackMe which includes an Introduction to LAN Topologies, a Primer on Subnetting, The ARP Protocol, and the DHCP Protocol.

1. What does LAN stand for? Local Area Network

2. What is the verb given to the job that Routers perform? Routing

3. What device is used to centrally connect multiple devices on the local network and transmit data to the correct location? Switch

4. What topology is cost-efficient to set up? Bus Topology

5. What topology is expensive to set up and maintain? Star Topology

6. Complete the interactive lab attached to this task. What is the flag given at the end? THM{TOPOLOGY_FLAWS}

   

7. What is the technical term for dividing a network up into smaller pieces? Subnetting

8. How many bits are in a subnet mask? 32

9. What is the range of a section (octet) of a subnet mask? 0-255

10. What address is used to identify the start of a network? Network Address

11. What address is used to identify devices within a network? Host Address

12. What is the name used to identify the device responsible for sending data to another network? Default Gateway

13. What does ARP stand for? Address Resolution Protocol

14. What category of ARP Packet asks a device whether or not it has a specific IP address? Request

15. What address is used as a physical identifier for a device on a network? MAC Address

16. What address is used as a logical identifier for a device on a network? IP Address

17. What type of DHCP packet is used by a device to retrieve an IP address? DHCP Discover

18. What type of DHCP packet does a device send once it has been offered an IP address by the DHCP server? DHCP Request

19. Finally, what is the last DHCP packet that is sent to a device from a DHCP server? DHCP ACK

Thank you for reading my article. Please leave any questions or comments on how I can improve my learning journey and the THM challenges. We can also connect more on LinkedIn or X.