Download CCNA Cisco Certified Network Associate Study Guide by Todd Lammle PDF

By Todd Lammle

Up-to-date for the most recent CCNA ExamHere's the e-book you want to organize for Cisco's revised CCNA examination, 640-801. This new version of the best-selling CCNA examine consultant provides:* In-depth insurance of each CCNA examination target* sensible info on Cisco internetworking ideas* 1000's of difficult evaluate questions* modern examination practise software program, together with a try engine, pattern simulation questions, and digital flashcardsAuthoritative assurance of all examination goals, including:* community making plans & designing* Implementation & operation* LAN and WAN troubleshooting

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Extra resources for CCNA Cisco Certified Network Associate Study Guide

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Windowing Ideally, data throughput happens quickly and efficiently. And as you can imagine, it would be slow if the transmitting machine had to wait for an acknowledgment after sending each segment. But because there’s time available after the sender transmits the data segment and before it finishes processing acknowledgments from the receiving machine, the sender uses the break as an opportunity to transmit more data. The quantity of data segments (measured in bytes) that the transmitting machine is allowed to send without receiving an acknowledgment for them is called a window.

Switches really add a lot of functionality to a network that hubs just don’t have. But most of us don’t have an unlimited budget. Hubs still can create a nice network—that is, of course, if you design and implement the network correctly. Let’s say that you have 40 users plugged into four hubs, 10 users each. At this point, the hubs are all connected together so that you have one large collision domain and one large broadcast domain. If you can afford to buy just one switch and plug each hub into a switch port, as well as the servers into the switch, then you now have four collision domains and one broadcast domain.

And as pressure to keep up the pace mounts, websites are only getting slicker and snappier. Keep in mind, the snazzier the site, the more resources it requires. ) Netscape Navigator and IE simplify both accessing and viewing websites. 400 standard to deliver messages between different e-mail applications. Electronic data interchange (EDI) A composite of specialized standards and processes that facilitates the flow of tasks such as accounting, shipping/receiving, and order and inventory tracking between businesses.

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