networking tutorials overview

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Networking Tutorials OverviewFind computer network tutorials, wireless communication guide, LAN/WAN guide, local areanetwork tools, wan introduction, osi layers model and many other advance topics of data

communication. This is very informative site for the IT people specially in the field of

computer networking. You will also find data communication overview, tech guides , datacommunication related information, topologies, tech study guide, Router Labs, ITcertifications, Ethernet guide, free IT resources, ip addressing tools, telecommunication guide

and many other informative resources. Data communication is a process of sharing data andshared resources between two or more connected computers. The shared resources can include

printer, Fax modem, Hard disk, CD/DVD Rom, Database and the data files.

A computer network can be divided into a small segments called Local Area Network (LAN),

networking between computers in a building of a office, medium sized networks (MAN),communication between two offices in a city and wide area networks (WAN) networking

between the computers, one is locally placed and the other can be thousands of miles away in

another city or another country in the world.

WAN connectivity is achieved by a device known as ³Router´. The internet is the world¶s largest

WAN, where millions of computers from all over the globe and connected with each other.

Networking is the practice of linking two or more computers or devices with each other. Theconnectivity can be wired or wireless. A computer network can be categorized in different ways,

depends on the geographical area as mentioned above.

There are two main types of the computer networking client-server and peer to peer. In the client

server computing, a computer plays a major role known as server, where the files, data in theform of web pages, docs or spread sheet files, video, database & resources are placed.



All the other computers in the client/server networks are called clientsand they get the data from the server. In the peer to peer networks all the

computers play the same role and no computer act as a centralized server. In the major businessesaround the world client-server networks model is in major use.

A network topology defines the structure, design or layout of a network. There are different topologieslike bus, ring, star, mesh, hybrid etc. The star topology is most commonly used topology. In the star

topology, all the computers in the network are connected with a centralized device such as hub or switch. Thus forms a star like structure. If the hubs/switch fails to work for any reason then all the

connectivity and communication between the computers will be halted.

A common communication language is used by the computers and the communication devices is knownas protocols. The most commonly used and popular protocol on the internet and in the home and other

networks is called TCP/IP. TCP/IP is not a single protocol but it is a suite of several protocols.Acomputer network can be a wired or wireless and TCP/IP protocol can work both in types of a

network.Data flow or communication can be divided into seven logical layers called OSI layers model

that was developed by Intel and Xerox Corporation and was standardized by ISO.

1. Application layer

2. Presentation layer 3. Session layer

4. Transport layer 5. Network layer

6. Data Link layer a. Media access control sub-layer

b. Logical link control sub-layer 7. Physical layer

A network can be divided into different scales and ranges and it depends on the requirement of theorganization and the geographical location. Computer Network can be divided into Local Area Network,Personal Area Network, Campus Area Network, Wireless Local Area Network, Metropolitan Area

Network and Wide Area Network.

There are several communication connection methods like HomePNA, Power line communication,Ethernet and Wifi connection method.

A network can also be categorized into several different types based on the services it provides likeServer farms, Storage area networks, Value control networks, Value-Added networks, SOHO networks,

Wireless and Jungle networks.

I have explained the basic and advance data communication technologies, Router commands,communication devices, certifications, IP addressing basics, subnetting, networking tips, networking

interview questions, windows networking, mobile technology and wireless computing. I have tried tocover all the hot topics in the area of computer networking so that maximum users can get benefit from

this website.

I will warmly welcome any suggestions, tips and unique content from my visitors if they want to sharewith me.



Before working on this website, I personally visited many networking related websites to updated my

knowledge to provide most up-to-date, unique information and best experience to my visitors.

I have tried to add all the good features, how tos and networking related utilities in my website. I am

hopeful that my visitors will like this website and find it very useful for the basic and advance datacommunication topics.

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