compare and contrast of high speed as criteria in designing different car models
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Answer:
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Explanation:
LAN or Local Area Network links network devices in such a way that personal computer and workstations can share data, tools and programs. Data transmits at a very fast rate as the number of computers linked are limited. LAN’s cover a smaller geographical area and are privately owned. One can use it for an office building, home, hospital, schools, etc. LAN is easy to design and maintain.
A Communication medium used for LAN has twisted pair cables and coaxial cables. It covers a short distance, and so the error and noise are minimized. LAN can be configured in the ring, bus and star topology. The ring topology is prevalent in the Token Ring LANs of IBM and bus is widespread in Token Bus and Ethernet LANs.LAN diagrammatic exampleIt is a broadcast network where the message is sent to all the connected hosts as all the host share the same transmission medium (wire). Broadcasting can be done in two ways statically and dynamically. In the static technique, the hosts are provided with a definite time slice for transmitting the information. While in the dynamic method the hosts can flexibly send the frame at any particular time.
Definition of Metropolitan Area Network
MAN or Metropolitan area Network covers a larger area than that of a LAN and smaller area as compared to WAN. It connects two or more computers that are apart but resides in the same or different cities. It covers a large geographical area and may serve as an ISP (Internet Service Provider). It’s hard to design and maintain a Metropolitan Area Network.MAN diagrammatic exampleIt is costly and may or may not be owned by a single organization. The data transfer rate of MAN is moderate.
Types of MAN
MAN can be categorised into two types: DQDB and SMDS.
DQDB (Distributed Queue Dual Bus): It is considered as a dual bus configuration refers that each host in the network would be linked to the two backbone network lines.
SMDS (Switched Multimegabit Data Services): SMDS connects different LANs and permits packets to transfer to any other LAN on the SMDS. It is a high-speed MAN which uses packet switching as a datagram service.