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

By Curt White

Offering crucial details for company managers, machine programmers, approach designers, in addition to domestic laptop clients, DATABASE COMMUNICATIONS AND machine NETWORKS, 8e presents a radical advent that incorporates assurance of the language of machine networks in addition to the consequences of information communications on company and society. Balancing technical innovations with daily concerns, it equips you with a superior knowing of the fundamental beneficial properties, operations, and boundaries of other different types of machine networks. It deals complete assurance of instant applied sciences, convergence, compression thoughts, community safeguard, LAN applied sciences, VoIP, and mistake detection and correction. The 8th version additionally bargains 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 safeguard difficulties, the net of items, cloud computing, zero-client workstations, and net domains.

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Sample text

This growth is attributable to the fact that each layer adds more information to the original data. Some of this layer-added information is needed by the nodes and routers in the data packet’s path, and some is required by the data packet’s final destination. This information aids in providing services such as error detection, error control, flow control, and network addressing. The addition of control information to a packet as it moves through the layers is called encapsulation. Note also that as the packet moves up through the layers, the data packet shrinks in size.

A user sitting at a workstation or laptop uses a wireless communication device to send and receive data to and from a wireless access point. This access point is connected to the local area network and basically serves as the “bridge” between the wireless user device and the wired network. Although this setup uses radio frequency transmissions, we still consider it a microcomputer-to-local area network connection. Microcomputer-to-Internet connections With the explosive growth of the Internet and the desire of users to connect to the Internet from home (either for pleasure or work-related reasons), the microcomputer-to-Internet connection continues to grow steadily.

The top layer in the OSI model is the application 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.

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