Wired and Wireless Networks 1.4 V2

Wired and Wireless Networks 1.4 V2

1. Packets

   • A packet is the unit of data that is routed between an origin and a destination on the Internet or any other packet-switched network.
   • Data transmitted over a network is broken into packets
   • Packets will have a time to live
   • Each packet contains the address of sender and the address of reciever
   • Packets contain a sequence number

2. Area Networks

   • WAN- Wide area network, mostly used in whole cities.
   • LAN-Local area network, used in schools or offices.

3. Bandwidth

   • The amount of data you can store at once

4. NIC (Network interface cards)

   • The NIC contains the electronic circuitry required to communicate using a wired connection (e.g., Ethernet) or a wireless connection (e.g., WiFi). A network interface card is also known as a network interface controller, network adapter, or Local Area Network (LAN) adapter

5. WAP (Wired access point)

   • Does not change IP address.
   • Allows people to access the internet.
   • An expansion for many devices
   • Requires an ether net cable

6. Router

   • The brains which send data
     • Manages information from the computer
   • IP address
   • An interconnection device used on networks to connect 4 at the maximum devices

7. Switches

   • An extension to the router
   • Has multiple ports.
   • It replaced HUB
     • Hub only worked one port at a time.
   • Allows you to communicate with the LAN

8. Hosting

   • In order to let other people see your website, it will be placed on a web server