networks

networks

1. advantage's

   • can fix hacks easy
   • if your computer breaks it is saved
   • firewall
   • protects system
     • data theft
       • being hacked
   • minimises freezing

2. types

   • wan
   • Lan
   • ip adress
   • ring
   • star
   • bus
   • tapology
   • Can
   • Man
   • san

3. dis advantages

   • if server breaks
   • easy hack
   • lacks independence
     • poses security difficulties
   • virus
   • malwear
   • dependancy
   • can break
   • expensive
   • files become inaccessible

4. ipadress

   • 4 billion ip's
   • 32 bit
   • ip= unique value
   • I p addresses are unique
   • Unique value
   • Designed in 1983
   • More than 4 billion

5. Internet

   • Huge global network
   • Broad band routier
   • Mesh topology
   • Routing
   • Packets
     • If watching a video the place it’s being sent from send the video in small clips. The most necessary ones first eg: in chronological order so the video will play before it being all downloaded
   • Cables under the sea
   • Englands internet leaves in Portsmouth
   • Packets may take different routs
   • Packets reassembled