1.4- internet connections

• explain the features of copper cables?


  A wired connection that signals are transmitted through electrical signals to pass data between networks.
• Give the benefits of copper cables?


  Are cheaper type of wire. Reliable electrical connection with good heat resistance. Can easily bend and less likely to break than fibre optic cables.
• Give the disadvantages of copper cables?


  Have a lower bandwidth so cannot transmit as much data as once than fibre optic cables. Can only carry signals up too 100 meters. Prone to signal loss
• Give the features of fibre optic cables?


  Signals are transmitted through pulses of light instead of electrical singals to transmit data. Signals are passed as waves of light reflected through glass tube meaning it has less network distortion (attenuation).
• Give the benefits of fibre optic cables?


  Have a higher bandwidth from 10 Gbps to 60 Tbps , meaning that they can transfer more data at once. Resistant to corrosion.
• Give the disadvantages of fibre optic cables?


  More expensive to install and can break if bent too much.
• Explain Satellite connection?


  Uses point to multipoint communication by using satellites above the earth's atmosphere that receives a transmission.
• Give the benefits of satellite connection?


  Portable form of wireless network,. Best way to get reliable internet access to rural and remote areas of the world.
• Give the disadvantages of satellite connection?


  Suffers from latency as signals travel a very long distance, affecting games and VOIP call.
• Explain microwave connection?


  Uses radio waves to send signals across a large area by microwave towers.
• Give the benefits of microwave connection?


  Can transmit over a large area. Highest data transmission rate due to a broader bandwidth.
• Give the disadvantages of microwave connection?


  Antennas must be in the line of sight of each other. Microwaves are affected by bad weather which increases the chances of attenuation (network distortion).
• What are the connection/network characteristics?


  Bandwidth, latency, range, strength, contention.
• What is latency?


  The delay when sending data cross a network.
• What is bandwidth?


  The maximum amount of data that can be transmitted over a network in a given amount of time at once.
• What is contention?

  Whether network is shared between users or dedicated.