Network

Network

1. Disadvantages

   • The cost of cabling and setting up can be high.
   • A virus can spread through a network very quickly (infecting each computer)
   • Hackers may gain unauthorised access to files saved on a networks server.

2. Advantages

   • Hardware, Software and Data can be shared
   • Network can fail to work properly – causing loss of access to data, hardware and software.
   • Network computers can communicate.

3. a file server

   • A computer on the network that holds files that can be used by other computers on the same network.

4. a client–server network

   • A client-server has one computer acting as a file saver.

5. a peer-to-peer network.

   • In a peer-to-peer network all computers are of equal importance.

6. Star network topology.

   • Advantage
     • If a cable/computer breaks, all of the other computer will still be able to access the file server.
   • Disadvantage
     • Expensive to install due to cabling needs

7. Ring network topology.

   • Advantage
     • Cheap network to set up
     • Data speed is continuous.
   • Disadvantage
     • If any computer or the network cable breaks, it can affect the whole network.

8. an intranet

   • A network providing similar services to the internet but only available within one company.

9. an extranet

   • Part of an intranet can be accessed by authorised members of the public.

10. World Wide Web

    • The collection of multimedia info or resources available on the internet

11. Switch

    • A device that filters data packets and forwards them between segments of the network.

12. Network interface card (NIC)

    • Computer hardware, generally installed inside the computer or peripheral, that allows devices to connect to a wired network.

13. Gateway

    • A system that allows LAN to connect with a WAN such as the internet.