Learn Networking BasicsA link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other. A backbone network is a centralized infrastructure that is designed to distribute different routes and data to various networks. It also handles management of bandwidth and various channels. It refers to the connection between computers and other network devices that are located within a small physical location. A node refers to a point or joint where a connection takes place.
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OSI sounds like the name of a top-secret government agency you hear about only in Tom Clancy novels. The OSI model breaks the various aspects of a computer network into seven distinct layers. These layers are kind of like the layers of an onion: Each successive layer envelops the layer beneath it, hiding its details from the levels above. Rather, the OSI model is a framework into which the various networking standards can fit. So, in a sense, the OSI model is sort of a standard of standards. The first three layers are sometimes called the lower layers.
Computer networks consist of many different components, technologies and protocols working together. Most modern networks use wireless wi-Fi as the main connection media and networks tend to be a mixture of wired and wireless. The diagram below shows a wired Ethernet network. To work each device must be connected to a Ethernet hub or switch. For a Wireless network the devices must connect to a wire access point as shown in the diagram below. Wireless access usually have an Ethernet hub built in which allows them to connect to the wired Ethernet network. In order to communicate with each other each computer needs to have a unique address.
in-One Desk Reference For Dummies, and Electronics All-in-One For Dummies. Although Doug The network administrator's job also includes solving basic problems that handy. If the manuals are in PDF form, keep the PDFs handy.
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The network computer that contains the hard drives, printers, and other resources that are shared with other network computers is called a server. This term comes up repeatedly, so you have to remember it. Write it on the back of your left hand. You have to remember this term, too. Write it on the back of your right hand.