Communication Standards & Protocols

Communication Standards Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo. Communication Protocols Introduction Definition Protocols are the set of rules and encoding specifications which are used by computers on the network that communicate between hardware and software entities for sending Read more…

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Firewall

History of Firewall The term firewall was applied in the late 1980s to computer network technology fields. Introduction of Firewall The firewall is the first line of defense for any computer system or a computer network. A firewall typically establishes a barrier between a trusted network and an untrusted network(internet).  Read more…

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World Famous Networks

There are so many large and specific networks in the world which performs specific operations. Some of them are public and some are private network. Among these, it may be research network, co-operative networks, commercial or corporate networks etc. These large network can be distinguished from each other on the Read more…

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Application Layer

Introduction It is probably the most easily misunderstood layer of the OSI model.   Features Functions This layer defines the language and syntax that programs use to communicate with other programs. This layer represents the purpose of communicating in the first place. For example, a program in a client workstation uses commands Read more…

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Presentation Layer

Introduction Features When data are transmitted between different types of computer systems, the presentation layer negotiates and manages the way data are represented and encoded. Sun’s XDR and OSI’s ASN.1 are two protocols used for this purpose. Functions The Presentation layer performs code conversion(ASCII and EBCDIC) and data reformatting (syntax Read more…

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