encryption

encryption

1. what does encryption do

   • by scrambling data

2. how do you encrypt a message

   • you can encrypt data by using a key

3. how do you decrypt a message

   • you can decrypt data by using cipher

4. when do we use encryption

   • by sending personal information

5. fire wall

   • prevents data being sent
   • prevents hackers
   • use when downloading

6. anti virus

   • scans once in a while

7. lans

   • a computer network that links devices within a building or group of adjacent buildings, especially one with a radius of less than 1 km.
     • lan is 30 times faster than wan

8. wans

   • wan is the whole internet it allows you to send messages every in the world

9. wpans wireless personal area network it is wireless and it personal unlike wan and you can send that and its the network but personal is only yours