Networks

Networks

1. Hardware

   • A Router makes sure that devices connect to a central are of the network.
   • Ethernet cable is used to connect a device to a rooter.
   • Network interface card connects any to any lan or wan around the world
   • Wifi range extender a device that extends your wifi in your lan.
   • The server one powerful computer that allows you to connect and login.
   • A modem is used to connect you to a wide area network.
   • Perhiperhals are devices that connect to the computer system and they can even connect to a lan if they have a network interface card.

2. Network types.

   • WPAN.
     • A wireless personal network is connected by devices and only used by you.
   • LAN.
     • A local area network is a bunch of devices connected to a rooter in a small geographical area.
   • WAN.
     • A wide area network is a group of LANS connect to a WAN to get wifi in a large geographical area.

3. Keywords.

   • Data.
   • Connection.
   • WAN is a load of LANS connected to the internet.
   • A LAN is a system that connects other systems to a WAN.
   • WPAN is a number of devices connected to bluetooth.
   • Devices.

4. Network security.

   • passwords need to be a mix of characters and letters to make them safe from scammers.
   • Firewall allows data to flow to your device,if something is not right it it captures it and asks you if it is permitted.
   • Antivirus scans all of your document for viruses before you open them.
   • Mixes packets of data with the help of a cipher to stop unauthorised users accessing your data.
   • Phising is cybercrime were somebody targets you,sends and email or text that looks real to get details and money.

5. Ethernet cable.

6. Advantages and disadvantages of wifi.

   • Wifi .
     • connection types.
       • Wifi is a disadvantage because it can be hacked,it's slow and it hasn't got a long range.
       • Wifi is an advantage because devices connect to a Lan better
       • GPRS uses communication to connect to the internet so it can transfer and access data.