Download e-book for kindle: Accessing the WAN CCNA Exploration Companion Guide by Bob Vachon

By Bob Vachon

Accessing the WAN

CCNA Exploration better half Guide


Bob Vachon

Rick Graziani


Accessing the WAN, CCNA Exploration significant other Guide is the legit supplemental textbook for the getting access to the WAN direction within the Cisco Networking Academy CCNA Exploration curriculum model four. This path discusses the WAN applied sciences and community prone required through converged functions in company networks. The better half advisor, written and edited via Networking Academy teachers, is designed as a conveyable table connection with use every time, anyplace. The book’s good points make stronger the cloth within the direction that can assist you specialize in very important thoughts and manage your research time for assessments.


New and enhanced gains assist you learn and reach this course:

  • Chapter goals: evaluate middle innovations through answering the point of interest questions indexed firstly of every bankruptcy.
  • Key phrases: check with the up to date lists of networking vocabulary brought and switch to the highlighted phrases in context in each one bankruptcy.
  • Glossary: seek advice the all-new entire thesaurus with greater than 250 terms.
  • Check Your figuring out questions and resolution key: review your readiness with the up-to-date end-of-chapter questions that fit the fashion of questions you spot at the on-line direction quizzes. the reply key explains every one answer.
  • Challenge questions and actions: try to ace tougher evaluation questions and actions designed to arrange you for the complicated sorts of questions you could see at the CCNA examination. the reply key explains every one answer.


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


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


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


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

Packet Tracer v4.1 built through Cisco. The documents 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 examine advisor

ISBN-10: 1-58713-201-X

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


Companion CD-ROM

The CD-ROM offers many beneficial 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 targets
  • 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

Packet-switching networks do not require a circuit to be established, and they allow many pairs of nodes to communicate over the same channel. The switches in a packet-switched network determine which link the packet must be sent on next from the addressing information in each packet. There are two approaches to this link determination: ■ Connectionless systems, such as the Internet, carry full addressing information in each packet. Each switch must evaluate the address to determine where to send the packet.

The network includes a company intranet to provide in-house documents and information to employees. In addition, the company has an extranet that provides project information only to designated customers. qxp 8 3/31/08 3:33 PM Page 8 Accessing the WAN, CCNA Exploration Companion Guide Figure 1-3 Campus (Multiple LANs) Marketing and Sales Finance and Accounting Internet Engineering and Production Business Campus (100s of Employees in One or More Floors or Neighboring Buildings) Branch (WAN) Another five years later, Span Engineering has been so successful with its patented process that demand for its services has skyrocketed.

To meet these requirements, the network must provide the necessary converged services and secure Internet WAN connectivity to remote offices and individuals. Figure 1-5 shows SPAN Engineering’s new distributed or global network. qxp 10 3/31/08 3:33 PM Page 10 Accessing the WAN, CCNA Exploration Companion Guide Figure 1-5 Distributed (Global) Branch Office Regional Office Central Office Internet Home Office Home Office Branch Office Telecommuter Branch Office As you can see from this example, a company’s network requirements can change dramatically as the company grows over time.

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