lan network advantages and disadvantages pdf

Lan Network Advantages And Disadvantages Pdf

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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. It includes devices housed in a single room to millions of devices spread across the world.

7 Advantages and Disadvantages of LAN | Limitations & Benefits of LAN

Local area network is the computer network that connects computers within the limited area such as schools, colleges or universities. Local area networks , generally called LANs , are privately-owned networks. They provide a useful way of sharing resources between end users. The resources such as printers, file servers, scanners, and internet are easily sharable among other connected computers in a network.

A typical Wi-Fi LAN operates one or more wireless access points that devices within coverage area connect to. These access points, manage network traffic which is flowing to and from the connected devices. A typical Ethernet LAN consisting of an ethernet cable to which all the machines are attached, like in our school labs, number of computers connected to each other through the common ethernet cable.

Though Ethernet and Wi-Fi are usually used in most home and office-based Local area networks, because of both the low cost and speed requirements, you can also set up a LAN with fiber optics which is more costly and provide better communication speed compared to Ethernet LAN or Wi-fi LAN. Advantages and Disadvantages of WAN.

LANs are restricted in size , a local network can contain anywhere from one or two devices up to a thousand devices. Some devices like printers, scanners, and other servers stay permanently with the LAN while mobile devices like computers, laptops, and phones may connect and disconnect from the network at various times.

LAN size depends on the transmission technology used in a network. For example, The size of Wi-fi LAN can be the actual coverage area of the wireless broadband routers whereas the size of an Ethernet LAN can be up to the size of the cable. In both cases, though, Local Area Networks can be extended to cover much larger distances if required, by connecting together multiple access points or cables through a switch or hub. Various topologies are possible to form a LANs but three core forms can be identified easily as follows:.

Bus topology : All devices are connected to a backbone cable, called the bus. The Bus networks are relatively less costly and very easy to install for small networks.

Ethernet systems use a bus topology. Ring topology: All devices are connected to one another in the shape of a closed loop, so that each device is connected directly to the neighboring device, one on either side of it.

Ring topologies are relatively expensive and difficult to install, but they offer high bandwidth and can cover large distances. Star topology: All devices are connected to a central hub device. Star networks are relatively easy to install and manage, but bottlenecks can occur because all data must pass through the hub. These topologies can also be mixed to perform better. Useful Links. Your email address will not be published. Network Types. Local Area Network LAN Local area network is the computer network that connects computers within the limited area such as schools, colleges or universities.

LANs are distinguished from other kinds of networks by three characteristics: Their transmission technology Their size Their topology Transmission Technology used in LANs local area networks use either Wi-Fi or Ethernet to connect computer and devices in a network.

Topologies used in LANs Various topologies are possible to form a LANs but three core forms can be identified easily as follows: Bus topology : All devices are connected to a backbone cable, called the bus. LANs operate at relatively high speed as compared to the typical WAN It connects computers within a single office, building, block or campus, i. This reduces cost and hardware purchases. Software Applications Sharing: In a Local Area Network, it is easy to use the same software in a number of computers connected to a network instead of purchasing the separately licensed software for each client a network.

Easy and Cheap Communication: Data and messages can easily be shared with the other computer connected to the network. This help users to use any computer in a network to access the required data. Data Security: Since data is stored on the server computer, it will be easy to manage data at only one place and the data will be more secure too. In school labs and internet Cafes, single internet connection is used to provide internet to all connected computers. Moreover, he can view the computer and internet history of the LAN user.

Data Security Threat: Unauthorised users can access important data of an office or campus if a server hard disk is not properly secured by the LAN administrator. A LAN Administrator is required to maintain these issues.

Covers Limited Area: LANs are restricted in size they cover a small area like a single office, single building or a group of nearby buildings. You may also like. About The Author Arsal. Leave a Reply Cancel reply Your email address will not be published.

Advantages and Disadvantages of LAN Local Area Network

Post a Comment. Perfect Computer Notes. Sponsored Links. Computer hardware resources like printers, modems, DVD-Rom drives and hard disks can be shared with the help of local area networks. This will reduce cost of hardware purchases. For example, a business organization using a Local Area Network for an office can use a single network printer for the employees of this office.

Advantages and disadvantages of local area network (LAN)

Businesses and other organisations often link computers together to make communication more efficient. Each computer is linked to a central server which acts as a go-between within this LAN and beyond. A WAN links computers together over a wide geographical area. The internet is the ultimate WAN.

When a Network connected to a limited number of computers or systems within a small geographical area is called the local area network. We have different topologies to administrate the structure of the local area network. Let us discuss each type of topology in detail. The local area network connects arranged in the different topologies.

Setting up a secure and reliable local area network benefits not only you and your employees, but also your customers and business partners. Compared to a wide area network, a LAN connection is relatively inexpensive to set up and maintain.

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.

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 - Главный бастион, два набора пакетных фильтров для Протокола передачи файлов, Х-одиннадцать, туннельный блок и, наконец, окно авторизации справа от проекта Трюфель. Внешний щит, исчезающий на наших глазах, - открытый главный компьютер. Этот щит практически взломан.

Chapter 1: What is a Network?

Это почти четыреста долларов. Итальянец засмеялся. Он явно не верил своим ушам.

 А это не так? - спросил Беккер холодно, глядя на ее припухший локоть. - Конечно, нет! - возмущенно ответила девушка. Она смотрела на него невинными глазами, и Беккер почувствовал, что она держит его за дурака.

 Scusi? - Он оказался итальянцем. - Аегорortо. Per favore. Sulla Vespa.

Чем глубже под землю уходил коридор, тем уже он становился. Откуда-то сзади до них долетело эхо чьих-то громких, решительных шагов. Обернувшись, они увидели быстро приближавшуюся к ним громадную черную фигуру. Сьюзан никогда не видела этого человека раньше.

 - Джабба засопел и сделал изрядный глоток.  - Если бы в игрушке Стратмора завелся вирус, он бы сразу мне позвонил. Стратмор человек умный, но о вирусах понятия не имеет.

Все, что полицейский мог сделать, - это проводить его до маленькой муниципальной клиники неподалеку от парка. Там он его и оставил. - Думаю, нет нужды спрашивать, куда направился Дэвид, - хмуро сказала. ГЛАВА 17 Дэвид Беккер ступил на раскаленные плиты площади Испании.

Local Area Network | Advantages and Disadvantages of LAN
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