NETWORK

NETWORK

1. TYPES OF NETWORKS

   • LAN
     • LOCAL AREA NETWORK OVER ONE NETWORK
       • price is cheaper
     • CAN BE USED FROM DIFFERENT PEOPLE CLOSE AND IN THE SAME GATED AREA
       • SINGLE GEOGRAPHICAL LOCATION
     • disadvantages with lan:
       • It covers a small geographical area. A virus can be spread more easily. High degree of maintenance. a constant need for an upgrade. Printing can be too much slow, long print queues may develop. A data is shared there is a greater need for security-based. Level of maintenance continues to grow
     • advantages of lan:
       • Hardware and software can be shared. Does not cost too much. Private ownership. All the user work can be stored in a central place hub. Separate component. It is easy to set up a security protocol to protect the LAN user from hackers
   • WAN
     • WIDE AREA NETWORK OVER MULTIPLE LOCATIONS
       • price is more expensive
       • ncrease efficiency. Easy of communication. Large network cover. Share information over the large area. Message can be sent very quickly to anyone else on the network. It supports the global market and global business. Centralized IT infrastructure. Boost your privacy.
         • advantages with WAN:
     • OTHER PEOPLE CAN JOIN OVER MULTIPLE LAN NETWORKS
     • CAN BE USED BY DIFFERENT COUNTRIES AND CITIES
     • disadantages with wan
       • It is slow in speed. It is complecated and complex. It is difficult to maintain the network. It is very costly because we have to pay every time for transferring data. WAN is a big and complex problem. Very much dependent on the third party because it is a public network

2. topology

   • ring
     • its cheap
     • catastrophic failure(entire system goes )
     • data collision

3. topology

   • star
     • all computers connected to a switch
       • low chance of failure
       • no collision
       • expensive
       • advantages:
       • disadvantages:
       • depends on a switch,if the switch breaks everythinf breaks and doesnt work
   • bus
   • network topology is the arrangement of computers and other elements of a network

4. IP Adress

   • An IP adress is an unique value assigned to eveery computer on the Network used to identify it.
   • Messages on a Network have an IP Address attached which is how a computer knows whetheror not to keep the message
   • lan=local area network
     • a small geographical area
   • wan=wired area network
     • a network over a large area
   • network= a series of computers connected to communicate ring
   • share resources= such as printers and internet connection