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Here's the book you need to prepare the latest Cisco Internetwork Troubleshooting Support (CIT) exam, 642-831. This Study Guide provides: In-depth coverage of key exam topics Practical information on troubleshooting and optimizing Cisco internetworks Hundreds of challenging review questions Leading-edge exam preparation software, including a test engine, sample simulation questions, and electronic flashcards Authoritative coverage of all exam objectives, including: Establishing an optimal system baseline Diagramming and documenting system topology and end system configuration Verifying connectivity at all layers Selecting an optimal troubleshooting approach Planning a network documentation system and baseline monitoring scheme Using Cisco IOS commands and applications to identify and isolate system problems Resolving sub-optimal system performance problems Restoring optimal baseline service Working with external providers and system users to resolve service provision problems Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Take your first step to CCNA certification From bestselling author Todd Lammle comes the most up-to-date book on CCNA exam 640-821, the first exam in Cisco's popular two-exam Cisco Certified Network Associate (CCNA) certification track. Understand networking for the small or home office market, prepare for the exam, and acquire the skills you need with this comprehensive guide. Inside you'll find: Complete coverage of all exam objectives in a systematic approach, so you can be confident you're getting the instruction you need Practical hands-on exercises to reinforce critical skills Real-world scenarios that show you life beyond the classroom and put what you've learned in the context of actual job roles Challenging review questions in each chapter to prepare you for exam day Exam Essentials, a key feature at the end of each chapter that identifies critical areas you must become proficient in before taking exam 640-821 A handy tear card that maps every official exam objective to the corresponding chapter in the book, so you can track your exam prep objective by objective Look inside for complete coverage of all exam objectives. Featured on the CD SYBEX TEST ENGINE: Test your knowledge with advanced testing software. Includes all chapter review questions and bonus exams. ELECTRONIC FLASHCARDS: Reinforce your understanding with flashcards that can run on your PC, Pocket PC, or Palm handheld. Also on CD, you'll find preview editions of the CCNA Video Series and the CCNA Audio Series from author Todd Lammle, as well as the entire book in searchable and printable PDF. Study anywhere, any time, and approach the exam with confidence.

Here's the book you need to prepare for Exam 1Z0-033: Oracle9i Database: Performance Tuning. This Study Guide provides: In-depth coverage of official exam objectives Practical information on optimizing Oracle9i databases Hundreds of challenging review questions, in the book and on the CD Authoritative coverage of all exam objectives, including: Using Diagnostic and Tuning Tools Monitoring and Managing the Buffer Cache Optimizing Sort Operations Detecting and Resolving Lock Contention Diagnosing Shared Server Performance Issues Using Oracle Blocks Efficiently Tuning SQL Statements Configuring Resource Manager Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Bringing order to the lawless frontier Almost daily, the boomtown growth of online activity generates more opportunities for cybercrime, identity theft, loss of data, and invasion of your privacy. To this lawless high-tech frontier comes the cavalry, mounted on (or in) blue PT Cruisers–Geeks On Call. Now they're helping you build that all-important first line of defense, with quick, easy-to-follow solutions to the most common security problems, plus simple steps you can take to protect your computer, your privacy, and your personal information–today. * Keep your virus protection up to date * Identify and remove spyware * Recognize phishing scams * Practice safe chatting and instant messaging * Learn to encrypt data for security * Protect your laptop and wireless connection * Create secure passwords * Safely use public computers Geeks On Call(r) is the premier provider of on-site computer services. The certified, trained and tested technicians from Geeks On Call provide expert computer installation and networking services, on-site repairs, security solutions and system upgrades for residential and commercial customers numbering in the hundreds of thousands each year. Founded in 1999, Geeks On Call began franchising in 2001. For more information, call 1-800-905-GEEK or visit www.geeksoncall.com. Geeks On Call franchises are independently owned and operated.

One of the fastest-growing certifications on the market, CWNA is rapidly becoming the premier professional wireless certification for network administrators. It is also the foundation-level exam for the complete Certified Wireless Network Professional program. Now you can join the move to Wi-Fi and prepare for your certification with this comprehensive and targeted study guide. This value-packed book includes: Practical information on designing, installing, and managing wireless networks, including the new 802.11 standards Challenging practice questions and hands-on exercises A test engine with bonus exams and over 150 electronic flashcards A pre-assessment test A detailed glossary Inside, find authoritative coverage of all exam PW0-100 objectives, including: Radio Technologies Antenna Concepts Wireless LAN Hardware and Software Network Design, Installation, and Management Wireless Standards and Organizations 802.11 Network Architecture Wireless LAN Security Troubleshooting Performing Site Surveys Featured on the CD SYBEX TEXT ENGINE: Test your knowledge with advanced testing software. Includes all chapter review questions and bonus exams. ELECTRONIC FLASHCARDS: Reinforce your understanding with flashcards that can run on your PC, Pocket PC, or Palm handheld. Also on CD, you'll find the entire book in searchable and printable PDF, as well as valuable tools, demo software, and white papers that will supplement your certification preparation. Visit www.sybex.com Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

AutoCAD is the leading software tool for creating technical and architectural drawings, but it definitely doesn't lead in the «easy to master» category. That's why there's AutoCAD and AutoCAD LT All-in-One Desk Reference For Dummies—the perfect way to break a complex topic into bite-size, easy-to-understand pieces. Once you get the hang of using AutoCAD and its slightly less feature-rich cousin, AutoCAD LT, you discover that it offers wonderful advantages. AutoCAD allows you to Create precision to 14 significant digits Re-use portions of your drawings by copying and pasting Draw things full size and print your drawings in any scale Produce drawings that are easier to read when reduced Electronically share and distribute drawings Design in 2D or 3D So obviously, the trick is to speed up that «getting the hang of it» process. That's where AutoCAD and AutoCAD LT All-in-One Desk Reference For Dummies comes in especially handy. Ten easy-to-follow minibooks cover every aspect of AutoCAD, including the latest features of AutoCAD 2007, so you can find just what you need to know quickly and easily. You'll get the scoop on AutoCAD basics, such as setting up drawings, finding your way around the interface, and using all the tools Drawing and modifying objects in 2D and annotating your drawings 3D modeling and viewing, working with solids and surfaces, and rendering Understanding how AutoCAD LT differs from AutoCAD and deciding which program you need Advanced drafting skills, including organizing drawings, working with blocks, and using AutoCAD utilities Setting up your drawings for plotting to paper and publishing Sharing your drawings online for collaboration Customizing and programming AutoCAD to make it work the way you want it to In the familiar, friendly For Dummies fashion, AutoCAD and AutoCAD LT All-in-One Desk Reference For Dummies gives you plain-English explanations and step-by-step directions. Written by a pair of AutoDesk Authorized Authors, this handy guide will help make your relationship with AutoCAD a happy and productive one.

The Basics of Computer Arithmetic Made Enjoyable and Accessible-with a Special Program Included for Hands-on Learning «The combination of this book and its associated virtual computer is fantastic! Experience over the last fifty years has shown me that there's only one way to truly understand how computers work; and that is to learn one computer and its instruction set-no matter how simple or primitive-from the ground up. Once you fully comprehend how that simple computer functions, you can easily extrapolate to more complex machines.» -Fred Hudson, retired engineer/scientist «This book-along with the virtual DIY Calculator-is an incredibly useful teaching and learning tool. The interesting trivia nuggets keep you turning the pages to see what's next. Students will have so much fun reading the text and performing the labs that they won't even realize they are learning.» -Michael Haghighi, Chairperson of the Business and Computer Information Systems Division, Calhoun Community College, Alabama «At last, a book that presents an innovative approach to the teaching of computer architecture. Written with authority and verve, witty, superbly illustrated, and enhanced with many laboratory exercises, this book is a must for students and teachers alike.» -Dr. Albert Koelmans, Lecturer in Computer Engineering, University of Newcastle upon Tyne, UK, and the 2003 recipient of the EASIT-Eng. Gold Award for Innovative Teaching in Computer Engineering Packed with nuggets of information and tidbits of trivia, How Computers Do Math provides an incredibly fun and interesting introduction to the way in which computers perform their magic in general and math in particular. The accompanying CD-ROM contains a virtual computer/calculator called the DIY Calculator, and the book's step-by-step interactive laboratories guide you in the creation of a simple program to run on your DIY Calculator. How Computers Do Math can be enjoyed by non-technical individuals; students of computer science, electronics engineering, and mathematics; and even practicing engineers. All of the illustrations and interactive laboratories featured in the book are provided on the CD-ROM for use by high school, college, and university educators as lecture notes and handouts. For online resources and more information please visit the author's website at www.DIYCalculator.com.

RHCE: Red Hat Certified Engineer Exam Notes provides the fastest and most effective way to make sure you're ready to pass the Red Hat Certified Engineer exam. The unique, innovative Exam Notes approach helps you gain and retain the knowledge you need, study point by study point Critical Information sections provide detailed analyses of the key issues for each study point Necessary Procedures sections cover the nuts and bolts of each topic with concise step-by-step instructions. Exam Essentials sections highlight crucial subject areas you'll need to know for the exam. Key Terms and Concepts sections define the words and concepts vital to passing the exam. Sample Questions sections preview the types of questions found in the exam and give answers and explanations.

Here's the book you need to prepare for Cisco's Building Scalable Cisco Internetworks (BSCI) exam, 642-801. This Study Guide provides: In-depth coverage of key exam topics Practical information on designing and implementing scalable Cisco internetworks Hundreds of challenging review questions Leading-edge exam preparation software, including a test engine, and electronic flashcards Authoritative coverage of all exam objectives, including: Using classful, classless, distance vector, and link state routing protocols Using VLSM to extend IP addresses Configuring EIGRP, OSPF, BGP, and IS-IS environments Configuring and verifying router redistribution in a network Configuring policy-based routing using route maps Utilizing the three-layer hierarchical design model Identifying IP addressing schemes, including features of IPv6 Verifying OSPF operation in a single and multiple areas Ensuring proper operation of Integrated IS-IS on Cisco routers Interpreting the output of various show and debug commands Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Here's the book you need to prepare for Exam 642-501, Securing Cisco IOS Networks (SECUR). This Study Guide provides: In-depth coverage of every SECUR exam objective Practical information on Cisco security solutions Hundreds of challenging practice questions, in the book and on the CD Leading-edge exam preparation software, including a testing engine, and electronic flashcards Authoritative coverage of all exam objectives, including: Basic Cisco Router Security Advanced AAA Security for Cisco Router Networks Cisco Router Threat Mitigation Cisco IOS Firewall CBAC Configuration Cisco IOS Firewall Authentication Proxy Configuration Cisco IOS Firewall IDS Configuration Building Basic IPSec Using Cisco Routers Building Advanced IPSec VPNs Using Cisco Routers and Certificate Authorities Configuring Cisco Remote Access IPSec VPNs Managing Enterprise VPN Routers Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

At the end of 2004, more than 600,000 people had received CompTIA's vendor-neutral A+ certification, a key credential for anyone pursuing a career as a computer technician This competitively priced new guide offers seven minibooks and 1,000+ pages covering every aspect of the two required A+ exams, plus customizable test-prep software on CD-ROM Minibooks provide a thorough review of all the hardware and operating system topics tested in the exams: installation, configuration, and upgrading; diagnosing and troubleshooting; preventive maintenance; motherboards, processors, and memory; printers; networking; and operating system fundamentals Published day-and-date with the CompTIA's latest revision of the A+ exams Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Here's the book you need to prepare for Exam 70-294, Planning, Implementing, and Maintaining a Microsoft Windows Server 2003 Active Directory Infrastructure. This Study Guide provides: In-depth coverage of every exam objective Practical information on planning, implementing, and maintaining a Windows Server 2003 Active Directory infrastructure Hundreds of challenging practice questions Leading-edge exam preparation software, including a test engine, electronic flashcards, and simulation software Authoritative coverage of all exam objectives, including: Planning and implementing an active directory infrastructure Managing and maintaining an active directory infrastructure Planning and implementing user, computer, and group strategies Planning and implementing group policy Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.