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The Explosion of Cybercrime
By Darril Gibson
May 23, 2011
This article provides an overview of various types of cyber crime, including cyber extorsion, botnets, morophing malware, and online fraud.
Basic Access List Configuration for Cisco Devices
By Sean Wilkins
Apr 4, 2011
This article discusses the basic concepts of how ACLs work and shows how a basic ACL is configured.
Cisco Press Certification Reading List
By Timothy L. Warner
Nov 30, 2009
InformIT Certification Reference Guide host Time Warner walks you through self-study options for the various Cisco professional certifications.
Training Never Goes Out of Fashion: An Interview with Wendell Odom
By Linda Leung, Wendell Odom
Jun 9, 2009
Linda Leung talks with Wendell Odom about what people these days really think about the classes, the exams, and the whole idea of certification.
31 Days Before Your CCNA Exam: Connecting Switches and Ethernet Technology
By Allan Johnson
Apr 15, 2009
Allan Johnson provides late study tips and resources for Ethernet and switching topics on the CCNA 640-802 exam.
CCNA Video Mentor: ICND2, VTP Servers and Clients
By Wendell Odom
Nov 28, 2008
This video excerpt from CCNA Video Mentor: (CCNA Exam 640-802) (Video Learning), 2nd Edition covers configuring VTP on Cisco switches.
CCNA Exam 640-553 Exam Cram: Implementing Secure Management and Hardening the Router
By Eric Stewart
Oct 21, 2008
This chapter outlines some methods to protect the confidentiality of remote sessions to the router.
CCENT/CCNA ICND1 Exam Guide: Introduction to Wireless LANs
By Wendell Odom
Jul 15, 2008
This chapter examines the basic concepts, standards, installation, and security options for some of the most common WLAN technologies today.
CCNA ICND2 Exam Guide: Troubleshooting IP Routing
By Wendell Odom
Jul 10, 2008
This troubleshooting chapter explains ping and traceroute commands, troubleshooting the packet forwarding process, and provides troubleshooting tools and tips.
CCNA Portable Command Guide: IPv6
By Scott Empson
Jul 1, 2008
This chapter provides information and commands concerning a number of IPv6-related topics.
CCNA Exam Prep: Wireless Security and Implementation Considerations
By David Minutella, Jeremy Cioara, Heather Stevenson
May 26, 2008
This chapter covers common administrative tasks required for WLAN maintenance and operation in preparation for the CCNA exam 640-802.
CCNA Exam Questions: Subnetting, VLSM, and IPv6
By Jeremy Cioara
May 21, 2008
Check your CCNA preparedness with these 30 sample Exam Cram questions.
CCNA Exam Prep: Data Link Networking Concepts
By Jeremy Cioara, David Minutella, Heather Stevenson
Feb 3, 2006
This chapter will help you prepare for the CCNA exam, with a focus on data link networking. Sample questions with detailed answers are included to help you review for the exam.
CCNA Exam Cram: Concepts in IP Addressing
By Michael Valentine, Andrew Whitaker
Jan 13, 2006
The CCNA exam(s) require a near-perfect fluency in subnetting. Success requires speed and accuracy in answering the many questions you will see on this topic. The key to this level of fluency is practice—you must work at your skills until they become second nature. The following sections discuss binary and hexadecimal numbering systems as compared with the more familiar decimal system.
CCNA Practice Questions: Basic IOS Configuration and Basic Serial WAN Connectivity
By Jeremy Cioara, Chris Ward
Jan 6, 2006
Test your knowledge and preparedness for the CCNA exam with 50 practice questions and answers from Exam Cram 2.
CCNA Command Quick Reference: Routing and Routing Protocols
By Scott Empson
Jun 3, 2005
This chapter condenses the CCNA Routing commands into an easy-to-use chart for quick reference.
CCNA Practice Questions: Basic IOS Configuration and Basic Serial WAN Connectivity
By Jeremy Cioara, Chris Ward
Jul 9, 2004
Jeremy Cioara and Chris Ward provide 50 questions with detailed answers from the CCNA exam's "Basic IOS Configuration and Basic Serial WAN Connectivity" objective.
CCNA Self-Study: Network Media (The Physical Layer)
By Stephen McQuerry
Apr 9, 2004
To determine what transmission media is right for particular networking enviornment you must consider organization's required throughput, cabling distance, noise resistance, security, flexibility and plans for growth.In this article Steve McQuerry highlights the concepts and procedures for assembling and cabling Cisco routers.
Hardware and the OSI Model for the CCNA Exam
By James G. Jones, Sheldon Barry
Mar 26, 2004
CCNA Self-Study (ICND Exam): Extending Switched Networks with Virtual LANs
By Stephen McQuerry
Dec 5, 2003
Steve McQuerry discusses how VLANs operate to provide more effective networks by controlling broadcasts in your network.

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