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COMPUTER NETWORKS

Compléter

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À propos de Compléter
computing
 Âge recommandé: 15 ans
17 fois fait

Créé par

Miss Laura
Miss Laura
Ecuador

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COMPUTER NETWORKS

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Miss Laura
1

vulnerable home satellites area computers WANs LANs internet cheaper secure cabling

Local area networks and wide area networks are essentially the same in many aspects . They
only differ in the that is covered by the network . are networks that are limited to
a small geographic location . The computers connected to the network could be in a single
room , a few rooms , or spread out in an entire building . , on the other hand , cover great
distances and are not limited to a single location . The biggest and most popular example of
a WAN is the , which spans the whole globe and has millions of computers connected
to it .
LANs are very common nowadays , it is commonplace in a work environment and even at .
It is necessary to implement a local area network in order to connect multiple to
the internet using a single DSL line . With regards to speed , LAN usually operates at much
higher rates compared to WAN . This is largely due to the proximity of the computers and the
lack of congestion in most cases . It is common to experience up to 80 or 90 mbps in a LAN
while achieving 10 to 20mbps is already a great achievement for WAN .
Security wise , LAN can be more due to the fact that all the computers are within a
specific area and are physically easier to secure . The data on a WAN needs to pass across
public phone lines in order to reach its intended destination . The data is then to
attack by anyone with the right skills to penetrate your network . Unlike LAN , there is just no
physical way of securing it , which is why electronic features are the only defence structure
in place .
Cost also varies greatly between the two . Deploying a LAN is relatively much easier
and than a WAN . It wouldn't require more than the cables , some switches , and
optionally , routers to those who want to connect to the internet . Whereas with WAN , the
long distances that the data travels would need miles and miles of , or in some
cases . Signal deterioration is also a very real problem for WANs , that's why
repeaters are used at intervals to amplify or rebuild the original signal .

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