CCENT Cisco Certified Entry Networking Technician Study Guide (Exam 640-822) (Study Guide Book & CD)

561 Pages·2008·17.33 MB·English

by  Matt Walker, Angela Walker

®
™
CCENT Cisco Certifie d
Entry Networking Technician
Study Guide
(Exam 640-822)
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®
™
CCENT Cisco Certifie d
Entry Networking Technician
Study Guide
(Exam 640-822)
Matthew Walker
Angie Walker
This study/training guide and/or material is not sponsored by, endorsed by, or affiliated
with Cisco Systems, Inc. in any manner. Cisco®, Cisco Systems®, CCDA®, CCNA®, CCDP®,
CCNP®, CCIE®, CCIP®, CCSP®, CCVP®, CCDETM, CCENTTM, the Cisco Systems logo, and
the Cisco Certified Internetwork Expert logo are trademarks or registered trademarks
of Cisco Systems, Inc., in the United States and certain other countries. All other
trademarks are trademarks of their respective owners. This publication and CD may be
used in assisting students to prepare for an exam. Neither The McGraw-Hill Companies
nor Boson Software warrant that use of this publication and CD will ensure passing
any exam.
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This book is dedicated to my father, Ronald Walker (1947–2008).
We miss you, Dad.
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ABOUT THE AUTHORS
Matthew Walker is the IA Training Instructor Supervisor and a Sr. IA Analyst at
Dynetics, Inc., in Huntsville, Alabama. An IT education professional for over 15 years,
Matt served as the Director of the Network Training Center and the Curriculum
Lead and Senior Instructor for the local Cisco Networking Academy on Ramstein
AB, Germany. After leaving the US Air Force, Matt served as a Network Engineer
for NASA’s Secure Network Systems, designing and maintaining secured data, voice,
and video networking for the agency. He has written and contributed to numerous
technical training books for Air Education and Training Command, United States
Air Force, and continues to train, and write, certification and college-level IT and
IA Security courses. Matt holds numerous commercial certifications, including
Cisco Certified Network Professional (CCNP), Microsoft Certified System Engineer
(MCSE), CEH (Certified Ethical Hacker), CNDA (Certified Network Defense
Architect), and Certified Pen Test Specialist (CPTS).
Angie Walker is currently the Chief Information Security Officer for the University
of North Alabama, located in beautiful Florence, Alabama. Among the many
positions she has filled over the course of her 20-plus years in Information Technology
and Information Assurance are Manager of the Information Systems Security (ISS)
Office for the Missile Defense Agency (MDA) South, as well as the lead for the
MDA Alternate Computer Emergency Response Team (ACERT). She served as
Superintendent of the United States Air Forces in Europe (USAFE) Communications
and Information Training Center, Superintendent of the 386 Communications
Squadron on Ali Al Saleem AB, Kuwait, and Senior Information Security Analyst
for Army Aviation Unmanned Aircraft Systems. Angie holds several industry
certifications, including CISSP, Network+ and Security+, and a master’s degree in
Information Systems Management. With over nine years of IT and IA educational
experience, she has developed and taught courseware worldwide for the US Air
Force, as well as several computer science courses as an instructor for the University of
Alabama in Huntsville, and Kaplan University in Fort Lauderdale, Florida.
Copyright © 2008 by The McGraw-Hill Companies. Click here for terms of use.
About the Tech Editor
Bobby E. Rogers is a Senior Information Assurance Analyst for Dynetics, Inc.,
in Huntsville, Alabama. In addition to working in the Certification and Accreditation
process for the U.S. government, Bobby also leads penetration testing teams for
Dynetics. Bobby recently retired from the United States Air Force after almost 21 years,
serving as a computer networking and security specialist, and has designed and managed
networks all over the world. He has held several positions of responsibility overseeing
network security in both the Department of Defense and private company networks.
His duties have included perimeter security, client-side security, security policy
development, security training, penetration testing, and computer crime investigation.
As a trainer, he has taught a wide variety of IT-related subjects in both makeshift
classrooms in tents in the desert and formal training centers. He also has taught a
wide variety of courses as a part-time contractor for several nationally known training
centers and a major university. Bobby is an accomplished author, having written
numerous IT articles in various publications and training materials for the U.S. Air
Force, and has authored several training videos on a wide variety of IT security topics.
He is also a regular security article contributor for several online IT sites.
He has a Bachelor of Science degree in Computer Information Systems from
Excelsior College, and two Associates in Applied Science degrees from the
Community College of the Air Force. Bobby’s professional IT certifications include:
A+, Security+, ACP, CCNA, CCAI, CIW, CIWSA, MCP+I, MCSA (Windows
2000 & 2003), MCSE (Windows NT4, 2000, & 2003), MCSE: Security (Windows
2000 & 2003), CISSP, CHFI, CIFI, CPTS, and CEH.
Copyright © 2008 by The McGraw-Hill Companies. Click here for terms of use.
CONTENTS AT A GLANCE
1 Networking 101 ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 TCP/IP .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3 Network Media and Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4 Ethernet Fundamentals ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
5 Switching: Moving Data Inside Your Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
6 Routing Essentials and IP Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
7 IP Address Subnetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
8 Interfacing with Cisco Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
9 Cisco Switch Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
10 Cisco Router Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
11 WANs and WLANs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
12 Applications, Security, and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
A About the CD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
Glossary .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
Index .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
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