Accessing the WAN, CCNA Exploration Companion Guide
- By Bob Vachon, Rick Graziani
- Published Feb 28, 2008 by Cisco Press.
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- Copyright 2008
- Dimensions: 8" x 9-1/4"
- Pages: 704
- Edition: 1st
- eBook (Adobe DRM)
- ISBN-10: 1-58713-293-1
- ISBN-13: 978-1-58713-293-3
Each new purchase of an Exploration Companion guide comes with an exclusive coupon code that can be used to Save 65% on these two additional study resources:
1. CCNA ICND2 640-822 Official Cert Guide, Premium Edition eBook and Practice Test (www.ciscopress.com/title/0132903806)
2. Accessing the WAN Companion Guide eBook (www.ciscopress.com/title/0132877589)
Accessing the WAN, CCNA Exploration Companion Guide is the official supplemental textbook for the Accessing the WAN course in the Cisco Networking Academy CCNA Exploration curriculum version 4. This course discusses the WAN technologies and network services required by converged applications in enterprise networks. The Companion Guide, written and edited by Networking Academy instructors, is designed as a portable desk reference to use anytime, anywhere. The book’s features reinforce the material in the course to help you focus on important concepts and organize your study time for exams.
New and improved features help you study and succeed in this course:
- Chapter objectives: Review core concepts by answering the focus questions listed at the beginning of each chapter.
- Key terms: Refer to the updated lists of networking vocabulary introduced and turn to the highlighted terms in context in each chapter.
- Glossary: Consult the all-new comprehensive glossary with more than 250 terms.
- Check Your Understanding questions and answer key: Evaluate your readiness with the updated end-of-chapter questions that match the style of questions you see on the online course quizzes. The answer key explains each answer.
- Challenge questions and activities: Strive to ace more challenging review questions and activities designed to prepare you for the complex styles of questions you might see on the CCNA exam. The answer key explains each answer.
Bob Vachon is the coordinator of the Computer Systems Technology program and teaches networking infrastructure courses at Cambrian College in Sudbury, Ontario, Canada. Bob has worked and taught in the computer networking and information technology field for 25 years and is a scholar graduate of Cambrian College.
Rick Graziani teaches computer science and computer networking courses at Cabrillo College in Aptos, California. Rick has worked and taught in the computer networking and information technology field for 30 years.
How To: Look for this icon to study the steps that you need to learn to perform certain tasks.
Packet Tracer Activities: Explore networking concepts in activities interspersed throughout some chapters using
Packet Tracer v4.1 developed by Cisco. The files for these activities are on the accompanying CD-ROM.
Also available for the Accessing the WAN Course
Accessing the WAN,
CCNA Exploration
Labs and Study Guide
ISBN-10: 1-58713-201-X
ISBN-13: 978-1-58713-201-8
Companion CD-ROM
The CD-ROM provides many useful tools and information to support your educa
Table of Contents
&atext-align=left align=left>Chapter 1 Introduction to WANs 1
Objectives 1
Key Terms 1
Introducing Wide-Area Networks (WANs) 3
What Is a WAN? 3
Why Are WANs Necessary? 5
The Evolving Enterprise 5
Businesses and Their Networks 5
Small Office (Single LAN) 6
Campus (Multiple LANs) 6
Branch (WAN) 8
Distributed (Global) 9
The Evolving Network Model 11
The Hierarchical Design Model 11
The Enterprise Architecture 13
WAN Technology Concepts 17
WAN Technology Overview 17
WAN Physical Layer Concepts 18
WAN Data Link Layer Concepts 23
WAN Switching Concepts 26
WAN Connection Options 29
WAN Link Connection Options 29
Dedicated Connection Link Options 31
Circuit-Switched Connection Options 32
Packet-Switched Connection Options 35
I nternet Connection Options 38
Choosing a WAN Link Connection 44
Summary 48
Labs 49
Check Your Understanding 50
Challenge Questions and Activities 54
Chapter 2 PPP 55
Objectives 55
Key Terms 55
Introducing Serial Communications 56
How Does Serial Communication Work? 56
Serial Communication Standards 59
TDM 61
Demarcation Point 66
Data Terminal Equipment