E Commerce

SECTION 1 Question 1 Packet switching Todays computer communication networks argon based on a technology called packet switching. This technology, which arose from DARPA-sponsored look into in the 1960s, is fundamentally several(predicate) from the technology that was then utilize by the teleph whizz re chief(prenominal)s (which was based on overlap switching) or by the military messaging system (which was based on center switching). In a packet switching system, info to be communicated is broken into delicate chunks that argon labeled to order where they come from and where they argon to go, rather like postcards in the postal system. Like postcards, packets have a maximum length and are not necessarily reliable. Packets are forwarded from champion computer to other until they arrive at their destination. If whatsoever are lost, they are re-sent by the originator. The recipient acknowledges receipt of packets to snuff out unnecessary re-transmissions. transmi ssion control communications protocol/IP Abbreviation of Transmission Control communications protocol/Internet Protocol, and pronounced as separate letters. TCP is one of the main protocols in TCP/IP networks. Whereas the IP protocol deals only with the routing of data packets, TCP enables two hosts to establish a connection and exchange streams of data.

TCP guarantees delivery of data and as well guarantees that packets will be delivered in the same order in which they were sent. HTTP HyperText Transfer Protocol, the underlying protocol used by the testis Wide weave. HTTP defines how messages are for matted and bearted, and what actions Web se! rvers and browsers should take in chemical reaction to various commands. For example, when you enter a URL in your browser, this genuinely sends an HTTP command to the Web server say it to fetch and transmit the requested Web page. The other main standard that controls how the origination Wide Web works is HTML, which covers how Web pages are formatted and displayed. HTTP is called a stateless protocol because each command is executed independently, without...If you neediness to get a secure essay, order it on our website: OrderCustomPaper.com

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