Networks

Networks

1. LAN - Local Area Network

2. WAN - Wide Area Network

3. Topologies

   • Bus - all the devices are connected to a single cable and have a terminator at each end.
   • Ring - Each networked devices is connected to two others, like points on a circle
   • Star - all devices are individually connected to a central hub or switch
   • Mesh
     • Circuit Switching
     • Packet switching
     • Pathfinding

4. Proticols - A set of agreed rules

   • HTTP/HTTPS - It asks for the HTML file, HTTPS is more secure
   • FTP - The File Transfer Protical
   • POP3 - downloaded email
   • IMAP - read email with out downloading