networks

networks

1. hardwares

   • ehtanet cable
     • what does an ethanet cable do?
       • allows a device to connect to a switch and also speeds up data transfers
   • router
     • what does a router do?
       • a router allows people to share resources such as your internet connections across differnet devices
   • switch
     • what does a switch do?
       • a switch allows devices to connect to the internet
   • network interference card
     • what does a network interference card do?
       • allows users to connect to a switch,router or a wireless access point
   • wireless acess point
     • what does a wireless access point do?
       • a wireless acess point are used to improve internet signals
   • peripheral
     • what does a peripheral do?
       • a peripheral is any device that connects to a computer system

2. modem

   • telephone connection
     • internet
   • what does a modem do?
     • a modem is used to connect a device to a wide area network (WAN)

3. server

   • what does a server do ?
     • a server controls the network and also backup any data saved on a device

4. network types

   • LAN
     • what is a LAN?
       • a LAN (local area network) is a small geographical area of computers and make up a WAN
   • WAN
     • what is a WAN?
       • a WAN (wide area network) allows people to connected to the internet and is made up from lots of LANS
   • WPAN
     • what is a WPAN?
       • a WPAN (wireless personal area network) allows a peripheral device to connect to a bluetooth device

5. connection types

   • ethanet cable
     • allows faster transfer speed and a faster internet connection
     • is not portable
     • connects to a WAN
   • wifi
     • faster than mobile data
     • not portable when outside
     • connects to a WAN
   • GPRS
     • Cheaper than the regular GSM network
     • slower connection when alot of GPRS users are in the area
     • connects to a WAN
   • bluetooth
     • avoids interference form other wireless devices
     • it can lose connection in some condictions
     • connects to a WPAN

6. keywords

   • range
     • refers to possible variables values or the intervals that include the upper and lower bounds of an array
   • data transfer speed
     • the amount of data that is transfer from one place to another at any given time
   • security
     • peice of software that protects the computer from viruses

7. computer protection

   • firewall
     • what does the firewall do?
       • checks data packets that goes out or comes in at at any given time
   • password
     • what do passwords do?
       • protects your computer with a 8 character word/number/symbols
   • anti malware
     • what does anti malware do?
       • periodicly scans your computer for malware software
   • encryption
     • what does encryption do?
       • encrypts any password on any website to make it harder for an attacker to get into your account

8. network threats

   • hackers
     • people who gets into your computer ad deletes/steal data
   • phising
     • people who act like people from the program and ask for personal information
   • malware
     • bit of malware data that infects your computer with viruses

9. DQ questions that i got wrong

   • cloud computing allows me to?
     • access my files with any devices with an internet connection
   • examples of input devices are?
     • mouse,keyboard, web camara and scanner
   • why might a shop decide to use wifi
     • it allows portable devices to cannect to a local area network
   • firewalls are diesigned to prevent
     • intruders entering your computer system