1. A DHCP is Dynamic Host Configuration Protocol, it is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway.
2. The type of NIC that I have is A VIA Rhine II Fast Ethernet Adapter
3. The physical address is 00-11-2F-BF-C9-DA
4. The Subnet Mask is 255.255.255.0

1. A LAN is a Local Area Network. A local area network is a network that connects computers and other devices in a small area, usually in a single building or a group of buildings.
2. WAN is Wide Area Network
A WAN is a computer network that spans a relatively large geographical area.
3. MAC ADDRESS stands for Media Access Control Address
It is an ID code that's assigned to a network adapter or any device with built-in networking capability, such as a printer.
4. 802.11 G is used for transmission over short distances at up to 54-Mbps in the 2.4 GHz bands.
802.11 N The speed is 100 Mbps and so it is up to 4-5 times faster than 802.11g. 802.11n also offers a better operating distance than current networks.
5. Bluetooth is a short-range radio technology (or wireless technology) aimed at simplifying communications among Internet devices and between devices and the Internet. It also aims to simplify data synchronization between Internet devices and other computers.
6. Router is a device that forwards data packets along networks.
Switch is a device that filters and forwards packets between LAN segments.
The difference between a router and a switch is switches are not capable of joining multiple networks or sharing an internet connection. A network with only switches must instead designate one computer as the gateway to the internet. With a router, all home computers connect to the router as peers, and the router performs all gateway functions.
7. A DHCP is