CompTIA Linux+ Powered by Linux Professional Institute Study Guide, 3rd Edition

Exam LX0-101 and Exam LX0-102

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Author: Christine Bresnahan,Richard Blum

Publisher: John Wiley & Sons

ISBN: 1119021219

Category: Computers

Page: 648

View: 1643

CompTIA Authorized Linux+ prep CompTIA Linux+ Study Guide is your comprehensive study guide for the Linux+ Powered by LPI certification exams. With complete coverage of 100% of the objectives on both exam LX0-101 and exam LX0-102, this study guide provides clear, concise information on all aspects of Linux administration, with a focus on the latest version of the exam. You'll gain the insight of examples drawn from real-world scenarios, with detailed guidance and authoritative coverage of key topics, including GNU and Unix commands, system operation, system administration, system services, security, and more, from a practical perspective that easily translates into on-the-job know-how. You'll also get access to helpful study tools, including bonus practice exams, electronic flashcards, and a searchable glossary of key terms that are important to know for exam day. Linux is viewed by many companies and organizations as an excellent, low-cost, secure alternative to expensive operating systems such as Microsoft Windows. The CompTIA Linux+ Powered by LPI exams test a candidate's understanding and familiarity with the Linux Kernel. Review the basic system architecture, installation, and management Understand commands, devices, and file systems Utilize shells, scripting, and data management techniques Navigate user interfaces, desktops, and essential system services As the Linux server market share continue to grow, so too does the demand for qualified and certified Linux administrators. Certification holders must recertify every five years, but LPI recommends recertifying every two years to stay fully up to date with new technologies and best practices. CompTIA Linux+ Study Guide gives you the advantage of exam day confidence.

CompTIA Linux+ Powered by Linux Professional Institute Study Guide

Exam LX0-103 and Exam LX0-104

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Author: Christine Bresnahan,Richard Blum

Publisher: John Wiley & Sons

ISBN: 1119021235

Category: Computers

Page: 688

View: 7586

CompTIA Authorized Linux+ prep CompTIA Linux+ Study Guide is your comprehensive study guide for the Linux+ Powered by LPI certification exams. With complete coverage of 100% of the objectives on both exam LX0-103 and exam LX0-104, this study guide provides clear, concise information on all aspects of Linux administration, with a focus on the latest version of the exam. You'll gain the insight of examples drawn from real-world scenarios, with detailed guidance and authoritative coverage of key topics, including GNU and Unix commands, system operation, system administration, system services, security, and more, from a practical perspective that easily translates into on-the-job know-how. You'll also get access to helpful study tools, including bonus practice exams, electronic flashcards, and a searchable glossary of key terms that are important to know for exam day. Linux is viewed by many companies and organizations as an excellent, low-cost, secure alternative to expensive operating systems such as Microsoft Windows. The CompTIA Linux+ Powered by LPI exams test a candidate's understanding and familiarity with the Linux Kernel. Review the basic system architecture, installation, and management Understand commands, devices, and file systems Utilize shells, scripting, and data management techniques Navigate user interfaces, desktops, and essential system services As the Linux server market share continue to grow, so too does the demand for qualified and certified Linux administrators. Certification holders must recertify every five years, but LPI recommends recertifying every two years to stay fully up to date with new technologies and best practices. CompTIA Linux+ Study Guide gives you the advantage of exam day confidence.

LPIC-1 Linux Professional Institute Certification Study Guide

Exam 101-400 and Exam 102-400

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Author: Christine Bresnahan,Richard Blum

Publisher: John Wiley & Sons

ISBN: 1119021197

Category: Computers

Page: 696

View: 7798

Thorough LPIC-1 exam prep, with complete coverage and bonusstudy tools LPIC-1Study Guide is your comprehensive source for thepopular Linux Professional Institute Certification Level 1 exam,fully updated to reflect the changes to the latest version of theexam. With 100% coverage of objectives for both LPI 101 and LPI102, this book provides clear and concise information on all Linuxadministration topics and practical examples drawn from real-worldexperience. Authoritative coverage of key exam topics includes GNUand UNIX commands, devices, file systems, file system hierarchy,user interfaces, and much more, providing complete exam prep forthe LPIC-1 candidate. Get access to invaluable study tools,including bonus practice exams, electronic flashcards, and asearchable PDF of key terms featured on the exam. Linux is viewed by many companies and organizations as anexcellent, low-cost, secure alternative to expensive operatingsystems, such as Microsoft Windows. The LPIC-1 tests a candidate'sunderstanding and familiarity with the Linux Kernel. This bookprovides comprehensive preparation and review, helping readers facethe exam with confidence. Review the system architecture, Linux installation, and packagemanagement Understand shells, scripting, and data management morecompletely Practice administrative tasks and essential systemservices Brush up on networking fundamentals and security issues As the Linux server market share continue to grow, so too doesthe demand for qualified and certified Linux administrators.Certification holders must recertify every five years, but LPIrecommends recertifying every two years to stay fully up to datewith new technologies and best practices. As exam day approaches,LPIC-1Study Guide is the one source you will want by yourside.

Einführung in SQL

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Author: Alan Beaulieu

Publisher: O'Reilly Germany

ISBN: 3897219387

Category: Computers

Page: 353

View: 6446

SQL kann Spaß machen! Es ist ein erhebendes Gefühl, eine verworrene Datenmanipulation oder einen komplizierten Report mit einer einzigen Anweisung zu bewältigen und so einen Haufen Arbeit vom Tisch zu bekommen. Einführung in SQL bietet einen frischen Blick auf die Sprache, deren Grundlagen jeder Entwickler beherrschen muss. Die aktualisierte 2. Auflage deckt die Versionen MySQL 6.0, Oracle 11g und Microsoft SQL Server 2008 ab. Außerdem enthält sie neue Kapitel zu Views und Metadaten. SQL-Basics - in null Komma nichts durchstarten: Mit diesem leicht verständlichen Tutorial können Sie SQL systematisch und gründlich lernen, ohne sich zu langweilen. Es führt Sie rasch durch die Basics der Sprache und vermittelt darüber hinaus eine Reihe von häufig genutzten fortgeschrittenen Features. Mehr aus SQL-Befehlen herausholen: Alan Beaulieu will mehr vermitteln als die simple Anwendung von SQL-Befehlen: Er legt Wert auf ein tiefes Verständnis der SQL-Features und behandelt daher auch den Umgang mit Mengen, Abfragen innerhalb von Abfragen oder die überaus nützlichen eingebauten Funktionen von SQL. Die MySQL-Beispieldatenbank: Es gibt zwar viele Datenbankprodukte auf dem Markt, aber welches wäre zum Erlernen von SQL besser geeignet als MySQL, das weit verbreitete relationale Datenbanksystem? Der Autor hilft Ihnen, eine MySQL-Datenbank anzulegen, und nutzt diese für die Beispiele in diesem Buch. Übungen mit Lösungen: Zu jedem Thema finden Sie im Buch gut durchdachte Übungen mit Lösungen. So ist sichergestellt, dass Sie schnell Erfolgserlebnisse haben und das Gelernte auch praktisch umsetzen können.

Designing with Javascript

Creating Dynamic Web Pages

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Author: Nick Heinle,Bill Peña

Publisher: "O'Reilly Media, Inc."

ISBN: 9781565923607

Category: Computers

Page: 216

View: 306

A guide for beginners offers an overview of JavaScript basics and explains how to create Web pages, identify browsers, and integrate sound, graphics, and animation into Web applications

The Language of SQL

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Author: Larry Rockoff

Publisher: Addison-Wesley Professional

ISBN: 0134658337

Category: Computers

Page: 240

View: 9545

This is the eBook of the printed book and may not include any media, website access codes, or print supplements that may come packaged with the bound book. The Language of SQL, Second Edition Many SQL texts attempt to serve as an encyclopedic reference on SQL syntax -- an approach that is often counterproductive, because that information is readily available in online references published by the major database vendors. For SQL beginners, it’s more important for a book to focus on general concepts and to offer clear explanations and examples of what various SQL statements can accomplish. This is that book. A number of features make The Language of SQL unique among introductory SQL books. First, you will not be required to download software or sit with a computer as you read the text. The intent of this book is to provide examples of SQL usage that can be understood simply by reading. Second, topics are organized in an intuitive and logical sequence. SQL keywords are introduced one at a time, allowing you to grow your understanding as you encounter new terms and concepts. Finally, this book covers the syntax of three widely used databases: Microsoft SQL Server, MySQL, and Oracle. Special “Database Differences” sidebars clearly show you any differences in syntax among these three databases, and instructions are included on how to obtain and install free versions of the databases. This is the only book you need to gain a quick working knowledge of SQL and relational databases. ·Learn How To... Use SQL to retrieve data from relational databases Apply functions and calculations to data Group and summarize data in a variety of useful ways Use complex logic to retrieve only the data you need Update data and create new tables Design relational databases so that data retrieval is easy and intuitive Use spreadsheets to transform your data into meaningful displays Retrieve data from multiple tables via joins, subqueries, views, and set logic Create, modify, and execute stored procedures Install Microsoft SQL Server, MySQL, or Oracle

Learning SQL

Master SQL Fundamentals

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Author: Alan Beaulieu

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596555580

Category: Computers

Page: 338

View: 579

Updated for the latest database management systems -- including MySQL 6.0, Oracle 11g, and Microsoft's SQL Server 2008 -- this introductory guide will get you up and running with SQL quickly. Whether you need to write database applications, perform administrative tasks, or generate reports, Learning SQL, Second Edition, will help you easily master all the SQL fundamentals. Each chapter presents a self-contained lesson on a key SQL concept or technique, with numerous illustrations and annotated examples. Exercises at the end of each chapter let you practice the skills you learn. With this book, you will: Move quickly through SQL basics and learn several advanced features Use SQL data statements to generate, manipulate, and retrieve data Create database objects, such as tables, indexes, and constraints, using SQL schema statements Learn how data sets interact with queries, and understand the importance of subqueries Convert and manipulate data with SQL's built-in functions, and use conditional logic in data statements Knowledge of SQL is a must for interacting with data. With Learning SQL, you'll quickly learn how to put the power and flexibility of this language to work.

Oracle PL/SQL Language

Pocket Reference

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Author: Steven Feuerstein,Bill Pribyl,Chip Dawes

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596004729

Category: Electronic books

Page: 121

View: 762

Provides a reference to basic language elements including block structure and declarations, statements for program control, and the calling of functions.

Pro Oracle SQL

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Author: Karen Morton,Kerry Osborne,Robyn Sands,Riyaj Shamsudeen,Jared Still

Publisher: Apress

ISBN: 1430262206

Category: Computers

Page: 580

View: 4156

Pro Oracle SQL, Second Edition unlocks the power of SQL in the Oracle database—one of the most potent SQL implementations on the market today. To master it requires a multi-pronged approach: learn the language features, learn how and why the language features work, learn the supporting features that Oracle provides to help use the language effectively, and learn to think and work in sets. Karen Morton has updated the content for Oracle version 12c and helps you master powerful aspects of Oracle SQL from the inside-out. You’ll learn analytic functions, the MODEL clause, and advanced grouping syntax—features that will help in creating good queries for reporting and business intelligence applications. Pro Oracle SQL, Second Edition also helps you minimize parsing overhead, read execution plans, test for correct results, understand performance management, and exert control over SQL execution in your database. You’ll learn when to create indexes, how to verify that they make a difference, how to use SQL Baselines and Profiles to optimize and stabilize SQL execution plans, and much more. You’ll also understand how SQL is optimized for working in sets, and that the key to getting accurate results lies in making sure that queries ask clear and precise questions. Pro Oracle SQL, Second Edition helps you work at a truly professional level in the Oracle dialect of SQL. You’ll master the language, the tools to work effectively with the language, and the right way to think about a problem in SQL. Endorsed by the OakTable Network, a group of Oracle technologists well-known for their rigorous and scientific approach to Oracle Database performance Comprehensive—goes beyond the language with a focus on what you need to know to write successful queries and data manipulation statements. Performance focused—teaches you how to measure the performance of your SQL statements and not just the syntax. What you’ll learn Master powerful SQL features implemented in the Oracle Database Understand how the Oracle Optimizer develops execution plans Read and interpret SQL execution plans Quickly diagnose and fix badly performing SQL Control execution plans through hints, profiles, and plan baselines Optimize queries within packaged applications without touching the code Recognize when not to waste time on SQL that is performing optimally Who this book is for Pro Oracle SQL, Second Edition is aimed at developers and database administrators who submit SQL for execution by an Oracle database. Readers should already know the basic four SQL statements, and be ready to learn deeply about Oracle’s specific implementation of the language, including Oracle-specific features and syntax. Readers should also want to learn about Oracle Database features such as analytic queries, the MODEL clause, and the WITH clause (subquery factoring) that are designed to help developers and database administrators exert control over their SQL environment and its execution. Table of Contents Core SQL SQL Execution Access and Join Methods SQL is About Sets It’s About the Question SQL Execution Plans Advanced Grouping Analytic Functions The Model Clause Subquery Factoring Semi-joins and Anti-joins Indexes Beyond the SELECT Transaction Processing Testing and Quality Assurance Plan Stability Plan Management/Control Cool SQL Constructs

Macintosh Operating System X

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Author: David Pogue

Publisher: Pogue Press

ISBN: N.A

Category: Mac OS.

Page: 583

View: 4448

Demonstrates the operating system's basic features, including Internet access, file management, configuring the desktop, installing peripherals, and working with applications.

Incident Response

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Author: Kenneth R. Van Wyk,Richard Forno

Publisher: Oreilly & Associates Incorporated

ISBN: 9780596001308

Category: Computers

Page: 214

View: 2301

"Incident Response is a complete guide for organizations of all sizes and types who are addressing their computer security issues."--BOOK JACKET.

Programming Visual Basic .NET

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Author: Dave Grundgeiger

Publisher: Oreilly & Associates Incorporated

ISBN: N.A

Category: Computers

Page: 446

View: 628

Programming Visual Basic .NETis the complete guide to application development using Visual Basic .NET. Targeted at programmers with some prior programming experience, the book covers the major areas of application development for Microsoft's new .NET platform. After starting with the traditional "hello world" application, the book discusses the two basic building blocks of any .NET application built with Visual Basic--the Visual Basic .NET programming language and the .NET Framework. Topics covered include: Visual Basic language elements Visual Basic's object-oriented language features Programming with attributes The Common Language Runtime Garbage Collection and the Finalize and Dispose methods Programmatically reading from and writing to .NET configuration files The remainder of the book focuses on the three major kinds of applications that can be developed with the .NET Framework: Windows Forms applications, ASP.NET applications, and web services. In each case, the book shows you how to build an application using Visual Studio .NET as well as using a text editor and the Visual Basic command-line compiler. This gives you an "under the hood" look at what Visual Studio is doing and allows you to gain a greater understanding of how a .NET application works--an understanding that you can take advantage of in building your own applications. Individual development topics covered in these chapters include: Developing Multiple Document Interface (MDI) Windows Forms applications. Handling form and control placement and resizing Working with Windows Forms menus Working with Windows Common Dialogs Taking advantage of .NET printer services programmatically Using ASP.NET HTML controls and Web controls Understanding security in ASP.NET Creating, discovering, and consuming web services Accessing data in your .NET applications using ADO.NET Published just in time for the first release of Visual Studio .NET,Programming Visual Basic .NETis sure to become a key component of developers' .NET libraries.

Network troubleshooting tools

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Author: Joseph D. Sloan

Publisher: O'Reilly Media

ISBN: 9780596001865

Category: Computers

Page: 346

View: 4490

Over the years, thousands of tools have been developed for debugging TCP/IP networks. They range from very specialized tools that do one particular task, to generalized suites that do just about everything except replace bad Ethernet cables. Even better, many of them are absolutely free. There's only one problem: who has time to track them all down, sort through them for the best ones for a particular purpose, or figure out how to use them? "Network Troubleshooting Tools" does the work for you--by describing the best of the freely available tools for debugging and troubleshooting. You can start with a lesser-known version of "ping" that diagnoses connectivity problems, or take on a much more comprehensive program like MRTG for graphing traffic through network interfaces. There's "tkined" for mapping and automatically monitoring networks, and Ethereal for capturing packets and debugging low-level problems. This book isn't just about the tools available for troubleshooting common network problems. It also outlines a systematic approach to network troubleshooting: how to document your network so you know how it behaves under normal conditions, and how to think about problems when they arise, so you can solve them more effectively. The topics covered in this book include: Understanding your network Connectivity testing Evaluating the path between two network nodes Tools for capturing packets Tools for network discovery and mapping Tools for working with SNMP Performance monitoring Testing application layer protocols Software sources If you're involved with network operations, this book will save you time, money, and needless experimentation.

XML in a Nutshell

A Desktop Quick Reference

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Author: Elliotte Rusty Harold,W. Scott Means

Publisher: Oreilly & Associates Incorporated

ISBN: 9780596000585

Category: Computers

Page: 480

View: 9171

A reference to the fundamental rules of XML details tags, grammar, placement, element names, attributes, and syntax.

SQL f?r Dummies

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Author: Allen G. Taylor

Publisher: John Wiley & Sons

ISBN: 352768039X

Category: Computers

Page: 432

View: 8290

Datenbanken sind das beste Werkzeug, um wichtige Informationen im Auge zu behalten. Mit SQL k?nnen die vorhandenen Daten strukturiert und zielsicher abgefragt werden. In "SQL f?r Dummies" macht Allen G. Taylor die Leser mit der Abfragesprache SQL und dem aktuellen Standard SQL:2011 verst?ndlich und humorvoll vertraut. Er beginnt mit dem notwendigen Grundlagenwissen f?r den Aufbau eines Datenbankmanagementsystems und den SQL-Hauptkomponenten, zeigt auf, wie man die Daten erstellt, ordnet und abfragt und SQL-Anweisungen in Programme einbindet. Zudem erkl?rt er, wie SQL mit XML verkn?pft werden kann, um Websites mit einer Datenbank zu verbinden. Au?erdem gibt es jede Menge Profi-Informationen, wie man zum Beispiel Datenbanken und Daten sch?tzen kann und Fehler lokalisiert und behebt.

Relationale Datenbanksysteme

Eine praktische Einführung

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Author: Peter Kleinschmidt,Christian Rank

Publisher: Springer-Verlag

ISBN: 3540267786

Category: Business & Economics

Page: 278

View: 2556

Praktische Einführung in Entwurf und Programmierung relationaler Datenbanksysteme mit zahlreichen Beispielen und ausführlichen Übungsaufgaben, die es dem Leser ermöglichen, schon nach kurzer Zeit eigene Datenbankapplikationen zu konzipieren. Neu in dieser Auflage ist die Integration von Datenbanken im World Wide Web.

PNG

The Definitive Guide

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Author: Greg Roelofs

Publisher: Oreilly & Associates Incorporated

ISBN: 9781565925427

Category: Computers

Page: 321

View: 9889

Helps graphic designers get the most out of this nextgeneration graphics file format and programmers who want to add full PNGsupport to their own applications by emphasizing the implementation of PNG with the libng C library and discussing such improvements as gamma correction and standard color spaces. Original. (Intermediate)

Writing Excel Macros

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Author: Steven Roman

Publisher: N.A

ISBN: N.A

Category: Macro instructions (Electronic computers).

Page: 529

View: 1561

Despite its powerful feature set, you've probably found that there's a lot that you can't do-or can't do easily-through Microsoft Excel's user interface. For instance, have you ever wanted to sort the worksheets in a workbook without dragging and dropping each one individually ? Have you ever wanted to select a worksheet whose tab was not shown at the bottom of the workbook's window without scrolling through the tabs of all available worksheets ? In fact, you can address these and innumerable other shortcomings and extend your control over Excel by using Visual Basic for Applications to control Excel programmatically. Wilting Excel Macros is the introduction to Excel VBA that allows you to do just that. Writing Excel Macros provides Excel users, as well as programmers who are unfamiliar with the Excel object model, with a solid introduction to writing VBA macros and programs for Excel. in particular, the book focuses on : The Visual Basic Editor and the Excel VBA programming environment. Excel features a complete, state-of-the-art integrated development environment for writing, running, testing, and debugging VBA macros. The VBA programming language, the same programming language used by the other applications in Microsoft Office 2000, as well as by the retail editions of Visual Basic. The Excel object model. Excel exposes nearly all of its functionality through its object model, which is the means by which Excel can be controlled programmatically using VBA. While the Excel object model, with 192 objects, is the second largest among the Office applications, readers need be familiar with only a handful of objects to write effective macros. Wilting Excel Macros focuses on these essential objects, but includes a discussion of a great many more objects as well. Writing Excel Macros is written in a terse, no-nonsense manner that is characteristic of Steven Roman's straightforward, practical approach. Instead of a slow-paced tutorial with a lot of handholding, Roman offers the essential information about Excel VBA that you must master to write macros effectively. This tutorial is reinforced by interesting and useful examples that solve common problems ; you're sure to have encountered. Writing Excel Macros is the book you need to delve into the basics of Excel VBA programming, enabling you to increase your power and productivity when using Microsoft Excel.

MAC OS in a Nutshell

A Power User's Quick Reference

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Author: Rita F. Lewis

Publisher: Oreilly & Associates Incorporated

ISBN: 9781565925335

Category: Computers

Page: 376

View: 788

Explains how to customize and troubleshoot the most recent version of the Mac operating system, covering the Mac interface, system maintenance, desktop publishing, Sherlock, networking, and creating themes.

Cracking DES

secrets of encryption research, wiretap politics & chip design

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Author: Electronic Frontier Foundation

Publisher: O'Reilly Media

ISBN: 9781565925205

Category: Computers

Page: 266

View: 2258

In clear, easy to read and understand language, this controversial book reveals the full technical details on how researchers and data recovery engineers can build a DES cracker. It includes design specifications and board schematics, as well as full source code for the custom chip.