What is an Address Resoultion Protocol and why do we care?

Essay by GeekCircusUniversity, Bachelor'sA+, October 2004

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ARP Address Resolution Protocol, a network layer protocol used to convert an IP address into a physical address (called a DLC address), such as an Ethernet address. A host wishing to obtain a physical address broadcasts an ARP request onto the TCP/IP network. The host on the network that has the IP address in the request then replies with its physical hardware address. Discuss multiplexing: To combine multiple signals (analog or digital) for transmission over a single line or media. A common type of multiplexing combines several low-speed signals for transmission over a single high-speed connection. Crosstalk: A disturbance caused by electromagnetic interference, along a circuit or a cable pair. EMI: Short for electromagnetic interference, a naturally occurring phenomenon when the electromagnetic field of one device disrupts, impedes or degrades the electromagnetic field of another device by coming into proximity with it. What are some upsides and downsides of fiber optic: Fiber optic cables have a much greater bandwidth than metal cables.

This means that they can carry more data. Fiber optic cables are less susceptible than metal cables to interference. Fiber optic cables are much thinner and lighter than metal wires. The main disadvantage of fiber optics is that the cables are expensive to install. In addition, they are more fragile than wire and are difficult to split. What is internetworking?: The art and science of connecting individual local-area networks (LANs) to create wide-area networks (WANs) , and connecting WANs to form even larger WANs. Devices: Any machine or component that attaches to a computer. Examples of devices include disk drives, printers, mice, and modems. These particular devices fall into the category of peripheral devices because they are separate from the main computer. Repeaters: is a physical layer device used to interconnect the media...