Networks

Networks

1. IP Addresses

   • Why does every computer need one?
     • Allows communication with other devices over a network
   • What is an IP address?
     • a unique string of numbers separated by full stops that identifies each computer using the Internet Protocol to communicate over a network.
   • Can you find the IP address on your machine?
     • open the CMD and search ipconfig /all

2. Hardware

   • Why does Wellacre use switches and not hubs?
     • Switches are quicker than hubs because they are more intelligent, hubs send the recieved data to all nodes but a switch only sends to the desired node
   • What does a router do?
     • Directs internet traffic in and out of the network
   • What does ISP stand for?
     • Internet service provider, meaning that your ISP will be Virgin or Sky
   • What speed is a LAN normally?
     • 10-20 mb/s
   • Most LAN networks use an Ethernet protocol. Can you explain this?
     • The protocol restricts the size of files that can be transferred at once, reducing the pressure on the sytstem
   • Is Wellacre a peer to peer network or a client server network?
     • What is the difference between them?
       • A client server network is when the node sends data to a hub/switch and then send that data to a server to be processed, a peer to peer network has no validation and any data is sent directly to the other node(s)
     • Wellacre is a client server network