Accessing the WAN CCNA Exploration Companion Guide - download pdf or read online

By Bob Vachon

Accessing the WAN

CCNA Exploration significant other Guide


Bob Vachon

Rick Graziani


Accessing the WAN, CCNA Exploration better half Guide is the legit supplemental textbook for the gaining access to the WAN direction within the Cisco Networking Academy CCNA Exploration curriculum model four. This path discusses the WAN applied sciences and community providers required through converged functions in firm networks. The spouse consultant, written and edited by means of Networking Academy teachers, is designed as a transportable table connection with use each time, wherever. The book’s positive factors toughen the fabric within the path that will help you concentrate on vital options and manage your research time for checks.


New and stronger positive factors assist you learn and achieve this course:

  • Chapter targets: evaluate middle options via answering the point of interest questions indexed before everything of every bankruptcy.
  • Key phrases: seek advice from 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 accomplished thesaurus with greater than 250 terms.
  • Check Your knowing questions and resolution key: overview your readiness with the up-to-date end-of-chapter questions that fit the fashion of questions you spot at the on-line path quizzes. the reply key explains each one answer.
  • Challenge questions and actions: try to ace tougher evaluate questions and actions designed to organize you for the complicated kinds of questions you may see at the CCNA examination. the reply key explains each one answer.


Bob Vachon is the coordinator of the pc platforms expertise application and teaches networking infrastructure classes at Cambrian university in Sudbury, Ontario, Canada. Bob has labored and taught within the machine networking and data expertise box for 25 years and is a student graduate of Cambrian College. 


Rick Graziani teaches desktop technology and computing device networking classes at Cabrillo university in Aptos, California. Rick has labored and taught within the desktop networking and knowledge expertise box for 30 years.


How To: search for this icon to review the stairs you must discover ways to practice yes tasks.


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

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


Also on hand for the gaining access to the WAN Course

Accessing the WAN,

CCNA Exploration

Labs and examine consultant

ISBN-10: 1-58713-201-X

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


Companion CD-ROM

The CD-ROM presents many helpful instruments and knowledge to aid your education:

Packet Tracer job workout files

  • A consultant to utilizing a Networker’s magazine booklet
  • Taking Notes: A .txt dossier of the bankruptcy goals
  • More IT profession 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 resources for Accessing the WAN CCNA Exploration Companion Guide

Sample text

PVCs are used in situations in which data transfer between devices is constant. PVCs decrease the bandwidth use associated with establishing and terminating VCs, but they increase costs because of constant virtual circuit availability. PVCs generally are configured by the service provider when an order is placed for service. ■ Switched virtual circuit (SVC): A VC that is dynamically established on demand and terminated when transmission is complete. Communication over an SVC consists of three phases: circuit establishment, data transfer, and circuit termination.

In North America, PRI corresponds to a T1 connection. The PRI rate of lines outside North America corresponds to an E1 or J1 connection. Figure 1-23 illustrates the various differences between ISDN BRI and PRI lines. 048 Mbps (Includes Sync) For WAN links, which require low bandwidth, the BRI ISDN can provide an ideal connection mechanism. BRI has a call setup time that is less than a second, and the 64-kbps B channel provides greater capacity than an analog modem link. If greater capacity is required, a second B channel can be activated to provide a total of 128 kbps.

This line is much shorter than a leased line connected directly between the subscriber locations. In addition, this one line to the POP can carry several VCs, allowing it to provide connections to multiple destinations. Because it is likely that not all the VCs require maximum demand simultaneously, the capacity of the leased line can be smaller than the sum of the individual VCs. 25 ■ Frame Relay ■ ATM WAN Connection Options This section covers various WAN connection options, including private dedicated links, private switched links, and public connection options using the Internet.

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Accessing the WAN CCNA Exploration Companion Guide by Bob Vachon

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