sql - a beginner''s guide, 2nd edition (2003)
Tài liệu SQL A Beginner’s Guide Third Edition pptx
... Query Language (SQL) to create and alter database objects, add data to and delete data from the database, modify data that has been added to that database, and of course, retrieve data stored ... chapter.Understand Relational DatabasesStructured Query Language (SQL) supports the creation and maintenance of the relational database and the management of data within that database. However, ... implementation of any relational database are the normalization of data and the associations of relations among the various types of data.Normalizing DataCentral to the principles of the relational...
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Networking, A Beginner''''s Guide, Fifth Edition (Networking Professional''''s Library) ppt
... on. A NIC, for example, is part of the physical layer.Data-Link LayerThe data-link layer, layer 2, defines standards that assign meaning to the bits carried by the physical layer. It establishes ... 28Physical Layer 30Data-Link Layer 30Network Layer 30Transport Layer 31Session Layer 31Presentation Layer 31Application Layer 32Understanding How Data Travels Through the OSI Layers 32Learning ... the Virtual Machine 384Installing VMware Tools 386Backing Up Virtual Machine Data 388Chapter Summary 388Appendix Understanding the Sarbanes-Oxley Act 389Sarbanes-Oxley Act Summary 390Title...
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Networking: A Beginner’s Guide Fifth Edition- P1 potx
... the trademark. Where such designations appear in this book, they have been printed with initial caps.McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales ... For my daughters, Vivian and Maxine, of whom I am extraordinarily proud. Networking: A Beginner’s Guide, Fifth EditionBRUCE HALLBERGNew York Chicago San Francisco Lisbon London Madrid Mexico ... in corporate training programs. To contact a representative please e-mail us at bulksales@mcgraw-hill.com.Information has been obtained by McGraw-Hill from sources believed to be reliable. However,...
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Networking: A Beginner’s Guide Fifth Edition- P2 potx
... 44Comparing Rings to Stars and Buses 46Demystifying Network Cabling 47Overview of Basic Cable Types 47Twisted-Pair Cabling: The King of Network Cables 48Coaxial Cable 52Installing and Maintaining ... 147Practices and User Education 148Understanding External Threats 149Front-Door Threats 150Back-Door Threats 152DoS Threats 153Viruses and Other Malicious Software 154Chapter Summary 15512 ... 106AppleTalk 107Chapter Summary 1079 Exploring Directory Services 109What Is a Directory Service? 110Forests, Roots, Trees, and Leaves 112Department of Redundancy Department 113Learning About...
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Networking: A Beginner’s Guide Fifth Edition- P3 potx
... the Virtual Machine 384Installing VMware Tools 386Backing Up Virtual Machine Data 388Chapter Summary 388Appendix Understanding the Sarbanes-Oxley Act 389Sarbanes-Oxley Act Summary 390Title ... Fedora 361Downloading and Installing Apache Web Server 361Administering Apache Web Server 363Stopping and Starting Apache 363Changing the Apache Configuration 363Publishing Web Pages 364Chapter ... and Manipulation 342Process Manipulation 351Miscellaneous Tools 355Chapter Summary 35722 Setting Up a Linux Web Server with Apache 359Overview of Apache Web Server 360Activating Apache...
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Networking: A Beginner’s Guide Fifth Edition- P4 pot
... job, and is essentially the project manager for the book. It involves keeping all of the parts of the book moving forward, knowing where all the chapters are at any given time, and occasionally ... other companies. You should seriously consider pursuing an appropriate certification. While certifications can never replace experience, they are one way that a person can demonstrate a needed ... knowledge and expertise in a particular area. This difference may be key in getting the best possible job offers and in being able to gain more experience. Often, an appropriate certification can...
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Networking: A Beginner’s Guide Fifth Edition- P5 ppt
... In a smaller company that has only one network administrator, duties include the following:N Creating, maintaining, and removing user accountsN Ensuring that necessary backups are made on a ... within the company, such as manufacturing, sales and marketing, accounting, purchasing and materials, retail operations, and so forth. The range of managers that you interview will depend on ... and expectations with regard to their network. What is important is that you learn the relevant questions to ask about networking for your company and arrive at the best possible answers to...
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Networking: A Beginner’s Guide Fifth Edition- P6 pdf
... salaries are top-notch, and people working in the networking field have jobs that are—more than most—fun, stimulating, and rewarding in many ways.Finally, you learned a little about the Sarbanes-Oxley ... those jobs. Many opportunities are available. The important thing is to get started and pursue your objectives.Sarbanes-Oxley Act of 2002You may be wondering what a law that was passed by the ... you to understand what all the fuss is about. The Sarbanes-Oxley Act of 2002 (usually referred to as SOX, pronounced “socks”) was an act sponsored by Senator Sarbanes and Representative Oxley...
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Networking: A Beginner’s Guide Fifth Edition- P7 potx
... numbers, A equals 10 in the decimal system, B equals 11, C equals 12, Dequals 13, E equals 14, and F equals 15.You can determine the decimal value for a hexadecimal value manually using the same ... letter x can be either lowercase or uppercase, so both 0x11AB and 0X11AB are correct. Hexadecimal numbers may also be shown with a trailing letter h, which can be lowercase or uppercase. Rarely, ... school. What grade school probably didn’t cover is the fact that basing a numbering system on ten is completely arbitrary; there is no mathematical reason to favor a base-10 system over any other....
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Networking: A Beginner’s Guide Fifth Edition- P9 doc
... are usually accomplished with a stand-alone computer—called a gateway server—that handles the e-mail interface between the two systems, by using gateway software that is part of the file-based ... server-based applications that are packaged together to make them more economical for smaller companies. N Use mailboxes from a service provider that runs a high-end e-mail system (and handes administration ... to a folder on a server, and then have the installation program run from that folder for each workstation. This makes installing the applications much faster and more convenient.CAUTION Make...
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Networking: A Beginner’s Guide Fifth Edition- P10 docx
... physical layer so the network layer (layer 3) can transmit its data. The data-link layer typically includes error detection and correction to ensure a reliable data stream. The data elements carried ... part of the physical layer.Data-Link LayerThe data-link layer, layer 2, defines standards that assign meaning to the bits carried by the physical layer. It establishes a reliable protocol through ... known as the packet layer) into a separate layer from the physical and data-link layers means the protocols defined in this layer can be carried over any variations of the lower layers. So, to...
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Networking: A Beginner’s Guide Fifth Edition- P11 ppt
... example, when data goes into the networking software and components making up the OSI model, it starts at the application layer and includes an application header and application data (the actual ... provide specific application services to an application. An example is a server that runs a database that a distributed application uses.N E-mail servers, which provide e-mail storage and interconnection ... important that a new installation of a cable plant be performed by a qualified contractor trained to install that type of cable. Cable may appear simple, but it is actually quite complicated, and its...
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Networking: A Beginner’s Guide Fifth Edition- P12 pdf
... some big drawbacks. Because all the subcables that make up the segment and run from node to node must be connected at all times, and because a failure in any part of the segment will cause the ... words standing for its inventors, Mr. Paul Neill of Bell Labs and Carl Concelman of Amphenol Corporation). BNC is a bayonet-style connector that quickly attaches and detaches with a quarter ... up layer 1 (the physical layer), and all the upper networking layers rely on it.Many people think that network cabling is relatively simple. After all, what could be simpler than running a wire...
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sql - a beginner's guide, 2nd edition (2003)
... implemented language for relational databases. SQL not onlyallows you to manage data within the database, but also manage the database itself. By using SQL statements, you can access an SQL database ... Structured Query Language (SQL) tocreate and alter database objects, add data to and retrieve data from the database, and modify datathat has been added to that database. SQL is the most widely ... has worked as a consultant and technical writerfor a number of years. As a consultant, he has managed thedevelopment and maintenance of web-based and client-serverapplications and the databases...
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