BO63-(PDC= progress delivery company)

BO63-(PDC= progress delivery company)

1. networks and hardware

   • network topology= different ways to set up networks
     • bus network
     • ring network
     • star network
   • security= keep parcels etc, secure
     • data
       • setting passwords and user restrictions. backing up, read only
     • physical
       • putting physical restrictions such as locks, alarms to keep computers that handle data secure.
     • firewall
       • acts as a block to prevent unwanted connectons
   • hardware
     • nodes
       • need at least two (devices) to create a network and connect
     • cables
       • used to connect various devices together, relatively cheap, distance cables may costly.
     • NIC
       • network interface card are needed in order to connect a node
     • switch
       • help connect nodes to share certain info
     • WAP= wireless access point
       • connect a wireless network. NOT CONNECTION TO INTERNET.
     • router
       • LAN connected here, helps direct traffic to areas of network
     • BARCODES
       • Contain a unique number= linked to the product. CHECK DIDGET
       • scanner scans the line, connects to network to bring info up from a database

2. communication