Data is probably your company’s most important asset, so your data warehouse should serve your needs. The fully updated Second Edition of Data Warehousing For Dummies helps you understand, develop, implement, and use data warehouses, and offers a sneak peek into their future. You’ll learn to:
* Analyze top-down and bottom-up data warehouse designs
* Understand the structure and technologies of data warehouses, operational data stores, and data marts
* Choose your project team and apply best development practices to your data warehousing projects
* Implement a data warehouse, step by step, and involve end-users in the process
* Review and upgrade existing data storage to make it serve your needs
* Comprehend OLAP, column-wise databases, hardware assisted databases, and middleware
* Use data mining intelligently and find what you need
* Make informed choices about consultants and data warehousing products
Electronic information involved in a lawsuit requires a completely different process for management and archiving than paper information. With the recent change to Federal Rules of Civil Procedure making all lawsuits subject to e-discovery as soon as they are filed, it is more important than ever to make sure that good e-discovery practices are in place.
e-Discovery For Dummies is an ideal beginner resource for anyone looking to understand the rules and implications of e-discovery policy and procedures. This helpful guide introduces you to all the most important information for incorporating legal, technical, and judicial issues when dealing with the e-discovery process. You'll learn the various risks and best practices for a company that is facing litigation and you'll see how to develop an e-discovery strategy if a company does not already have one in place.
* E-discovery is the process by which electronically stored information sought, located, secured, preserved, searched, filtered, authenticated, and produced with the intent of using it as evidence
* Addresses the rules and process of e-discovery and the implications of not having good e-discovery practices in place
* Explains how to develop an e-discovery strategy if a company does not have one in place
A complete preparation guide for the entry-level networking CCNA certification
If you're planning to advance your career by taking the all-important Cisco Certified Network Associate (CCNA), this is the study guide you need! Seven minibooks cover all the concepts and topics on which you'll be tested, covering the latest version of the exam.
Each part of the exam is covered thoroughly in its own section, so you can readily find the information you want to study. Plenty of review questions help you prepare, and the companion CD-ROM includes the highly rated Dummies Test Engine so you can test your progress with questions based on exam content.
* The Cisco Certified Network Associate (CCNA) is the entry-level certification for network professionals
* Seven minibooks in this guide cover Secure Device Manager, Virtual Private Networks, IPv6, 2960 Switches, Cisco Network Assistant, Advanced EIGRP and OSPF, and Introduction to Wireless Networks
* Covers the latest version of the exam, including the new voice, security and wireless components added in 2008
* Packed with review questions to help you prepare
* Includes more security and troubleshooting information
CCNA 1-4 思科认证网络工程师（CCNA）是思科职业认证的第一步，最低要求为280个学时。该课程的侧重点是解决在科学、通讯和社会研究等领域的网络应用中的问题。
If you're preparing for Cisco certification, your road starts with CCENT Exam 640-822 ICND1. This volume covers everything you need to know! You'll learn networking basics and how to work with Cisco devices, routers, switches, and more. With over 600 pages, plus dozens of review questions, this complete guide will help you make the grade.
Discover CCENT certification — find out what the certification involves and what to expect on the exam
Networks and Cisco devices — learn networking basics, all about ports, and how to configure interfaces and services such as DHCP and NAT
Data routing — explore static routing, dynamic routing protocols, and how to control the routing process with the routing table
Be prepared — learn basic troubleshooting steps and commands you can use on Cisco devices
Cast a wider net — become familiar with network security, security best practices, and wide area networks (WANs)
Open the book and find:
Basic facts of networking
Introduction to TCP/IP
Hints for using the Cisco IOS
Step-by-step description of the routing process
A guide to basic configuration
Exam tips for each topic
An exam-objective mapping table
Detailed examples of subnetting
* 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
Here's what you need to pass the A+ Certification exam — in one value-priced package
This book covers the A+ Essentials, IT Technician, Remote Support Technician, and Depot Technician exams in topic-specific chunks for easy review. Packed with proven tips, practice tests, and practical information that will still be handy in the real world after you've passed the exam!
Discover how to
* Install and upgrade motherboards, memory, and processors
* Understand ports and install external devices
* Perform maintenance and diagnose problems
* Recognize exam pitfalls
* Recover from system failure
This nuts-and-bolts guide walks you through the mysteries of Oracle and database administration. You’ll learn how to understand Oracle database architecture, set up and manage an Oracle database, and keep it running in tiptop form. Oracle 11g For Dummies covers:
* The building blocks behind the database engine as well as Oracle’s physical and logical structures
* Hardware, software, system, and storage requirements for implementation
* How to recognize and accommodate the differences between Oracle installations on Windows and on Linux/UNIX
* Daily and intermittent tasks necessary to keep your database running properly
* How to assess potential threats to your database, configure Oracle Recovery Manager, and set up backup and recovery procedures
* When to use online, offline, controlfile, and archivelog backups
* Troubleshooting methodology and how to use Oracle database logs and other diagnostic utilities
* Different ways to manage your database
* How to automate jobs with the Oracle Scheduler
* Using SQL in Oracle, and a great deal more
SQL For Dummies, 7th Edition, shows programmers and web developers how to use SQL to build relational databases and get valuable information from them. This book covers the core features of the SQL language. Topics covered include how to use SQL to structure a DBMS and implement a database design; secure a database; and retrieve information from a database. This edition will be revised to reflect the new enhancements of SQL/XML:2008.
The latest update of the perennial bestselling SQL For Dummies, which has sold more than 210,000 units in six editions.
SQL is the most popular database language in the world
Covers creating, accessing, manipulating, maintaining, and storing information in relational database management systems (DBMS) such as Access, Oracle, SQL Server, and MySQL.
Includes new content on using SQL with XML to power data-driven web sites and using SQL with Access 2010
Whether you're daunted by database development or a system admin star, SQL For Dummies, 7th Dummies will have you working your web site in no time at all.
Computer viruses—just the thought of your trusty PC catching one is probably enough to make you sick. Thanks to the cyber-sickies who persist in coming up with new strains, there’s a major new cyberattack nearly every day. Viruses sneak in, usually through e-mail.
Fortunately, there are ways to inoculate and protect your computer. Computer Viruses For Dummies helps you:
* Understand the risks and analyze your PC’s current condition
* Select, install, and configure antivirus software
* Scan your computer and e-mail
* Rid your computer of viruses it’s already caught
* Update antivirus software and install security patches
* Use firewalls and spyware blockers
* Protect handheld PDAs from viruses
* Adopt safe computing practices, especially with e-mail and when you’re surfing the Net
Written by Peter H. Gregory, coauthor of CISSP For Dummies and Security + For Dummies, Computer Viruses For Dummies goes beyond viruses to explain other nasty computer infections like Trojan horses, HiJackers, worms, phishing scams, spyware, and hoaxes. It also profiles major antivirus software to help you choose the best program(s) for your needs.
Remember, if you don’t protect your computer, not only do you risk having your computer infiltrated and your data contaminated, you risk unknowingly transmitting a virus, worm, or other foul computer germ to everybody in your address book! This guide will help you properly immunize your PC with antivirus software now and install updates and security patches that are like booster shots to keep your software protected against new viruses.
What an amazing world we live in! Almost anything you can imagine can be researched, compared, admired, studied, and in many cases, bought, with the click of a mouse. The Internet has changed our lives, putting a world of opportunity before us. Unfortunately, it has also put a world of opportunity into the hands of those whose motives are less than honorable. A firewall, a piece of software or hardware that erects a barrier between your computer and those who might like to invade it, is one solution.
If you’ve been using the Internet for any length of time, you’ve probably received some unsavory and unsolicited e-mail. If you run a business, you may be worried about the security of your data and your customers’ privacy. At home, you want to protect your personal information from identity thieves and other shady characters. Firewalls For Dummies® will give you the lowdown on firewalls, then guide you through choosing, installing, and configuring one for your personal or bus iness network.
Firewalls For Dummies® helps you understand what firewalls are, how they operate on different types of networks, what they can and can’t do, and how to pick a good one (it’s easier than identifying that perfect melon in the supermarket.) You’ll find out about
* Developing security policies
* Establishing rules for simple protocols
* Detecting and responding to system intrusions
* Setting up firewalls for SOHO or personal use
* Creating demilitarized zones
* Using Windows or Linux as a firewall
* Configuring ZoneAlarm, BlackICE, and Norton personal firewalls
* Installing and using ISA server and FireWall-1
Become a cyber-hero - know the common wireless weaknesses
Wireless networks are so convenient - not only for you, but also for those nefarious types who'd like to invade them. The only way to know if your system can be penetrated is to simulate an attack. This book shows you how, along with how to strengthen any weak spots you find in your network's armor.
Discover how to:
* Perform ethical hacks without compromising a system
* Combat denial of service and WEP attacks
* Understand how invaders think
* Recognize the effects of different hacks
* Protect against war drivers and rogue devices