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introduction to Networks 2.0 (How do you connect WANs ((Satellite- this…
introduction to Networks 2.0
How do you connect WANs
Satellite- this can bounce signals and data off satellites in space to other nodes.
Microwave link- satelitle dishes are used at either end. However there needs to be a line of sight which can make it very fast.
Fibre optic cables- transmit data as light beams. It is very fast because the data can be transmitted at the speed of light.
Leased line- you can rent cables underground to be able to be connected to the other LANs.
Advantages of WANs
People in big businesses are normally geographically spaced around then are able to give you files or data to give them to other people in your company.
It can also help the companies productivity so they can get the best result of the work they do. Just so you aren't wasting lots of time giving your colleagues the work you have so everything is a lot quicker and how you need it to be.
Also collaboration is a big part it then means that you share ideas and how you want the company to be run, this makes everything so much more practical for you and your companies benefit.
Disadvantages of WANs
The disadvantages of WAN is that cost is quite a lot and also if it goes wrong then you have to pay even more to what you just spent a fortune on. And also you need quite a lot of expertise to set it up and to fix it and to just be working in your company.
The other disadvantage is that the hardware ( underground cabling ) is not owned by you so you can't fix so then you have to rely on the organisation that owns all the cabling to fix it. This means that you are reliant on the other people that own the cabling for them to fix to pretty much kind of save you company. Because if it is not fixed then you can't send data and worst of all you then can't communicate with the people that are in your company that aren't anywhere near you.
Network failure
If the server stops working then the whole organisation effects everything, e.g. if you computer turns off and you don't want it to because it has failed then everyone else's will turn off.
If the data is not saved then the network failure will then get rid of it all, that is the whole point of backups.
However if the authentication server went down then no-one would be able log into the network.
If you lost all of your files then if you have back-up files then you are able to get them back and then maybe make them again just so you have more copies, so if that happens again you know what to do so your company doesn't go down the drain.
https://trinitynewbury.fireflycloud.net/17jlucketttrinitynewburyacademytrustorg/computer-science/paper-1/14-wired-and-wireless-networks/introduction-to-networks
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