Download Accessing the WAN CCNA Exploration Companion Guide by Bob Vachon PDF

By Bob Vachon

Accessing the WAN

CCNA Exploration significant other Guide


Bob Vachon

Rick Graziani


Accessing the WAN, CCNA Exploration spouse Guide is the professional supplemental textbook for the gaining access to the WAN path within the Cisco Networking Academy CCNA Exploration curriculum model four. This direction discusses the WAN applied sciences and community prone required by means of converged purposes in company networks. The better half consultant, written and edited via Networking Academy teachers, is designed as a transportable table connection with use each time, wherever. The book’s good points toughen the fabric within the direction that can assist you specialise in very important suggestions and arrange your examine time for tests.


New and superior good points assist you learn and reach this course:

  • Chapter ambitions: evaluation middle techniques through answering the point of interest questions indexed at the start of every bankruptcy.
  • Key phrases: consult with the up to date lists of networking vocabulary brought and switch to the highlighted phrases in context in every one bankruptcy.
  • Glossary: seek advice the all-new complete word list with greater than 250 terms.
  • Check Your realizing questions and solution key: review your readiness with the up-to-date end-of-chapter questions that fit the fashion of questions you notice at the on-line path quizzes. the reply key explains every one answer.
  • Challenge questions and actions: attempt to ace tougher assessment questions and actions designed to arrange you for the complicated types of questions it's possible you'll see at the CCNA examination. the reply key explains each one answer.


Bob Vachon is the coordinator of the pc platforms know-how software and teaches networking infrastructure classes at Cambrian university in Sudbury, Ontario, Canada. Bob has labored and taught within the computing device networking and knowledge expertise box for 25 years and is a pupil graduate of Cambrian College. 


Rick Graziani teaches machine technology and desktop networking classes at Cabrillo collage in Aptos, California. Rick has labored and taught within the desktop networking and data know-how box for 30 years.


How To: search for this icon to review the stairs it's essential discover ways to practice convinced tasks.


Packet Tracer actions: discover networking strategies in actions interspersed all through a few chapters utilizing

Packet Tracer v4.1 built through Cisco. The records for those actions are at the accompanying CD-ROM.


Also to be had for the gaining access to the WAN Course

Accessing the WAN,

CCNA Exploration

Labs and research advisor

ISBN-10: 1-58713-201-X

ISBN-13: 978-1-58713-201-8


Companion CD-ROM

The CD-ROM offers many helpful instruments and data to aid your education:

Packet Tracer job workout files

  • A advisor to utilizing a Networker’s magazine booklet
  • Taking Notes: A .txt dossier of the bankruptcy goals
  • More IT occupation Information
  • Tips on Lifelong studying in Networking


This e-book is a part of the Cisco Networking Academy sequence from Cisco Press. the goods during this sequence aid and supplement the Cisco Networking Academy on-line curriculum.

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Extra info for Accessing the WAN CCNA Exploration Companion Guide

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Others are for city use only, allowing police and fire departments and other city employees to do certain aspects of their jobs remotely. To connect to a municipal Wi-Fi, a subscriber typically needs a wireless modem, which provides a stronger radio and directional antenna than conventional wireless adapters. Most service providers provide the necessary equipment for free or for a fee, much like they do with DSL or cable modems. ■ WiMAX: Worldwide Interoperability for Microwave Access (WiMAX) is a new technology that is just beginning to come into use.

This is because the links are shared, and packets must be entirely received at one switch before moving to the next. Despite the latency and jitter inherent in shared networks, modern technology allows satisfactory transport of voice and even video communications on these networks. In Figure 1-19, Server A is sending data to Server B. Packets may not necessarily always take the same path to reach the destination. Each packet may take different routes to reach Server B. qxp 28 3/31/08 3:33 PM Page 28 Accessing the WAN, CCNA Exploration Companion Guide Figure 1-19 Packet Switching Receiving data from B … A Packets Waiting in Switch Queue Receiving data from A … B Virtual Circuits Packet-switched networks may establish routes through the switches for particular end-toend connections.

However, they are still in use in many portions of the developing world, which have limited access to newer technologies. Frame Relay Figure 1-25 shows a Frame Relay network. 25 in several ways. 25 additionally provides Layer 3 services. Frame Relay implements no error or flow control. The simplified handling of frames leads to reduced latency, and measures taken to avoid frame buildup at intermediate switches help reduce jitter. Frame Relay offers data rates up to 4 Mbps, with some providers offering even higher rates.

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