Tag Archives: Server

Homework – Networks

Topics 5 and 6 – Networking

  1. Explain the difference between LAN’s and WAN’s with reference to transmission media, bandwidths and geographical spread. (2)
  2. Explain the difference between a mainframe computer with terminals and a network of computers. (2)
  3. Explain the differences between client server and peer-to-peer networks. (2)
  4. On a LAN describe the functions of file, print and web servers. (2)
  5. Describe a bus topology in terms of nodes and channels. Describe the consequences of failure of a node and a channel. (2)
  6. Describe the functions of a hub, switch and router on a network with particular reference to the differences between a hub and a switch. (3)
  7. Explain why a network computer needs a network interface card (NIC). (1)
  8. Explain briefly why networks are becoming increasingly widespread. (2)
  9. Explain how a virus may be spread to a computer and how it then may take effect. (2)
  10. The access a user has on the network depends on their permissions. Explain what is meant by permissions giving as an example the permissions you may have on your own folder and a shared folder on the network. (2)
Total Marks 20

Client Server Vs Peer to Peer

Client – Server

  • All resources (printer, files and Internet) on the network are controlled by the server.
  • Centralised storage of data
  • Centralised storage of data means regular back-ups can be made from the server.
  • Security is set of easily using a server and client network.  Usernames and password are easily given along with access levels for users.
  • Used in businesses (banks) and organisations (schools, colleges, universities.)

Peer to Peer

  • No centralised storage.  Each workstation stores its data independently.
  • No centralised storage means no back up system.
  • Security is difficult because there is no mechanism for central access.
  • Best suited with a trusting environment.  Family home or small office.

How the Internet works in 5 minutes

I liked this video but I did not like or agree with their definition of server, it was a simplification too far.

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Compare it with the video below and you will see the similarities

[kml_flashembed movie="http://www.youtube.com/v/Ve7_4ot-Dzs" width="425" height="344" allowfullscreen="true" fvars="fs=1" /]