Networks

Networks

1. Advantages

   • files can easily be shared between users
   • can share printers which saves money
   • data can easily be shared

2. Disadvantages

   • its expensive to set up the cabling
   • hackers may gain unauthorised access to files saved
   • a virus can spread through a network very quickly

3. Topology

   • Bus Network Topology
     • Advantages
       • easy to install
       • cheap to install doewsnt require cable
     • Disadvantages
       • if the main cable fails or gets damaged the whole network wil fail
       • speed of data is slow
   • Star Network tropology
     • Advantages
       • very reliable-if one cable device fails then all others will continue to work
       • high performing no data collisions can occur
     • Disadvantages
       • ecspensive to install as this type of network uses the most amount of cables
       • if a hub or switch fails all the devices connected to it wll have no network connection
   • Ring Network topology
     • Disadvantages
       • if the main cable fails or any device is faulty then the whole network will fail
     • Advantages
       • This type of network can tranfer data quickly even if there are a large number of devices

4. A File server

   • a file server is a computer attached to a network that has the primary purpose of providing a location for shared disk access

5. A client-server Network

   • A host is any computer connected to a network

6. A Peer-to-Peer Network

   • A Peer to Peer network is a group of computers each of which as a node for sharing files within a group