Communication And Network Concepts Pdf

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16.04.2021 at 08:52
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communication and network concepts pdf

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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.

Computer Network Tutorial

The main objective of ARPANET was to develop a network that could continue to function efficiently even in the event of a nuclear attack. It is not owned by anybody. Different types are :. The main advantage of this technique is guaranteed delivery of the message. Mostly used for voice communication.

Chapter 1: What is a Network?

A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by the network nodes. The interconnections between nodes are formed from a broad spectrum of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies. The nodes of a computer network may include personal computers , servers , networking hardware , or other specialised or general-purpose hosts. They are identified by hostnames and network addresses. Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment. Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol. Computer networks may be classified by many criteria, for example, the transmission medium used to carry signals, bandwidth , communications protocols to organize network traffic, the network size, the topology, traffic control mechanism, and organizational intent.

1. Introduction. -A network can be defined as a group of computers and other devices Ethernet LANs: based on a bus topology and broadcast communication.

data communication and networking pdf notes

Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education.

Files could be as small as 25kb size or as large as a movie. Data Communication and Computer Networks Page 3 1. A common use for worms lies in their installing back doors on the harmed computer for the purpose of creating a zombie computer which the worm author then controls. The compilation of all the quizzes mcq for each and every chapters in the book of Data Communications and Networking by Behrouz A.

 Куда. - В ее трахнутый Коннектикут.  - Двухцветный снова хмыкнул.

Теперь он мог принимать заказы в любой точке мира. Сообщения поступали мгновенно, и их нельзя было отследить. Он торопливо повернул выключатель.


Delicia V.
18.04.2021 at 12:17 - Reply

The emerging communication and networking technologies and the way in which these are being integrated into the human, industrial, and social framework have made it evident that there are a number of related technical and socioeconomic areas whose understanding is still less than satisfactory and in which long-term research is needed.

Dalal C.
20.04.2021 at 09:56 - Reply

Our Computer Networking Tutorial is designed for beginners and professionals.

23.04.2021 at 00:20 - Reply

Communication And Network Concepts Ta ble of Con t e n t s Topic Name Slide No. What is Computer Network? 3 Evolution of Networking 4.

Aubin B.
23.04.2021 at 14:18 - Reply

Internet: A world-wide network connecting millions of computer networks for the purpose of exchanging data and communications using special rules of.

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