Local Area Network And Wide Area Network Pdf

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local area network and wide area network pdf

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We own and operate these networks. Perhaps in one building or a few buildings close to each other called a campus. As the name implies, WANs cover large geographical areas. This could be a network between two cities or as large as the Internet. They build large networks that span entire cities or regions and lease the right to use their networks to their customers.

Types of Computer Networks: LAN, MAN, WAN, VPN

If you understand the fundamental objectives of your organization and how your telecommunication network assists you to achieve these objectives you will have a sound basis for the development of network security. The types of potential interruption must also be understood remembering that small, intermittent failures can be worse than complete collapse. Risk exposures can be prioritized and contingency plans established. Duplicated carrier communications, private network triangulation, and virtual private networks are considered as well as ISDN and switched backup services. The consolidation of discrete services to make switching to alternative sites much easier is also suggested.

Local Area Networks (LAN) and Wide Area Networks (WAN), Difference between LAN and WAN

Wide Area Network WAN is a collection of various local area networks LAN to transmit the data to the large geographical area in the form of voice, video, image, files. A LAN is a small area network that connects the network only for a limited distance. Ethernet and wifi fall under the local area network. Merely, the network of all local area networks is called a Wide area network WAN. It connects different LANs and other networks for communication and to share and access data from one user to another user over a longer distance.

A local area network LAN is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. Ethernet and Wi-Fi are the two most common technologies in use for local area networks. The increasing demand and usage of computers in universities and research labs in the late s generated the need to provide high-speed interconnections between computer systems. A report from the Lawrence Radiation Laboratory detailing the growth of their "Octopus" network gave a good indication of the situation. A number of experimental and early commercial LAN technologies were developed in the s.

Computer Network Fundamentals

A wide area network WAN is a telecommunications network that extends over a large geographic area for the primary purpose of computer networking. Wide area networks are often established with leased telecommunication circuits. Businesses, as well as schools and government entities, use wide area networks to relay data to staff, students, clients, buyers and suppliers from various locations across the world.

There are various types of computer networks available. We can categorize them according to their size as well as their purpose. The size of a network should be expressed by the geographic area and number of computers, which are a part of their networks.

In its simplest form, a wide-area network WAN is a collection of local-area networks LANs or other networks that communicate with one another. Today, there are several types of WANs, built for a variety of use cases that touch virtually every aspect of modern life. Packet switching is a method of data transmission in which a message is broken into several parts, called packets, that are sent independently, in triplicate, over whatever route is optimum for each packet, and reassembled at the destination. Each packet contains a piece part, called the payload, and an identifying header that includes destination and reassembly information.

Minimizing Risk in Your Wide Area Network Design

A network consists of two or more computers that are linked in order to share resources such as printers and CDs , exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams. It is generally limited to a geographic area such as a writing lab, school, or building.

Local area network

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One way to categorize networks is to divide them into local-area networks (LAN) and wide-area networks (WAN). LANs typically are connected workstations.


Wide Area Networks (WAN)

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Wide area network

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1 Comments

  1. Ghita P. 14.05.2021 at 16:00

    Local Area Network LAN is a computer network, which is limited to a small office, single building, multiple buildings inside a campus etc.