Download Data communications and computer networks: A business user's by Curt White PDF

By Curt White

Supplying crucial info for company managers, laptop programmers, procedure designers, in addition to domestic desktop clients, DATABASE COMMUNICATIONS AND laptop NETWORKS, 8e presents an intensive advent that comes with insurance of the language of laptop networks in addition to the consequences of information communications on enterprise and society. Balancing technical innovations with daily concerns, it equips you with a great knowing of the fundamental gains, operations, and boundaries of other forms of computing device networks. It bargains complete insurance of instant applied sciences, convergence, compression options, community safeguard, LAN applied sciences, VoIP, and mistake detection and correction. The 8th variation additionally deals up to the moment insurance of close to box communications, up-to-date USB interface, lightning interface, and IEEE 802.11 ac and advert instant criteria, firewall updates, router defense difficulties, the web of items, cloud computing, zero-client workstations, and net domains.

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TCP is not the only possible protocol found at the TCP/IP transport layer. User Datagram Protocol (UDP) is an alternative also used, though less frequently, in the TCP/IP protocol suite. TCP/IP’s network layer, sometimes called the Internet layer, is roughly equivalent to OSI’s network layer. The protocol used at this layer to transfer data within and between networks is the Internet Protocol (IP). The Internet Protocol is the software that prepares a packet (a fixed-size collection) of data so that it can move from one network to another on the Internet or within a set of corporate networks.

Figure 1-8 shows a diagram of a typical sensor-to-local area network connection in a manufacturing environment. Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.

The request then works its way back down to the secretary of the marketing department, who sends it back to the secretary of computer science. The computer science secretary then sends the reply to the request up the layers until it reaches the dean of arts and sciences. Figure 1-17 shows how this request for a degree might move up and down through the layers of a university’s bureaucracy. Figure 1-17 Flow of data through the layers of bureaucracy Dean of Arts & Sciences Dean of Business Chairperson of Computer Science Chairperson of Marketing Computer Science Curriculum Committee Marketing Curriculum Committee Secretary Secretary School of Arts & Sciences School of Business Note that the data did not flow directly between deans, nor did it flow directly between department chairpersons or curriculum committees.

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