By Curt White
Supplying crucial details for enterprise managers, machine programmers, procedure designers, in addition to domestic computing device clients, DATABASE COMMUNICATIONS AND computing device NETWORKS, 8e offers an intensive creation that incorporates insurance of the language of laptop networks in addition to the results of knowledge communications on company and society. Balancing technical ideas with daily concerns, it equips you with a high-quality realizing of the elemental good points, operations, and barriers of other kinds of laptop networks. It deals complete insurance of instant applied sciences, convergence, compression ideas, community safeguard, LAN applied sciences, VoIP, and blunder detection and correction. The 8th variation additionally bargains up to the moment assurance of close to box communications, up-to-date USB interface, lightning interface, and IEEE 802.11 ac and advert instant criteria, firewall updates, router protection difficulties, the web of items, cloud computing, zero-client workstations, and web domains.
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Extra resources for Data communications and computer networks: A business user's approach
Like the elements of a well-oiled machine, all components of a computer network must work together to produce a product. Second, does the choice of one piece depend on the choice of another piece? To make the pieces as modular as possible, you do not want the selection of one piece to constrain the choice of another piece. For example, if you create a network and originally plan to use one type of wiring but later change your mind and use a different type of wiring, will that change affect your choice of word processor?
This means the transport layer is not in use while the data packet is hopping from point to point within the network—it is used only at the two endpoints of the connection. If the underlying network experiences problems such as reset or restart conditions, the transport layer will try to recover from the error and return the end-to-end connection to a known safe state. As we shall see, to ensure that the data arrives error-free at the final destination, the transport layer must be able to work across all kinds of networks, whether they are reliable or not.
Figure 1-10 shows an example of a handheld personal digital assistant (PDA) that, along with making telephone calls, can transmit and receive data. The PDA has a modem installed, which transmits the PDA’s data across the wireless telephone network to the wireless telephone switching center. The switching center then transfers the PDA’s data over the public telephone network or through a connection onto the Internet. Many newer handheld devices have combined data accessing capabilities with a cell phone and can transfer data over wireless telephone connections.
Data communications and computer networks: A business user's approach by Curt White
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