Fill in the Blanks COMPUTER NETWORKSOnline version Read the text and complete with the correct word. by Miss Laura 1 computers cabling satellites LANs WANs area vulnerable home cheaper internet secure 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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