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Nine Switch Commands Every Cisco Network Engineer Needs to Know
By Sean Wilkins
Aug 4, 2015
Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, provides a quick overview of nine commands that are essential for working with Cisco networks, whether or not your goal is certification.
Upgrading and Repairing PCs Tip #21: How to Use a Digital Multimeter to Check Your Computer's Power Supply
By Scott Mueller
Aug 4, 2015
In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott shares a simple test you can perform on a power supply is to check the output voltages.
Viewing, Editing, and Enhancing Photos On Your Mobile Device
By Jason Rich
Aug 4, 2015
In this chapter from My Digital Photography for Seniors, you’ll learn how to use some of the common photo editing and enhancement tools found in most photo editing mobile applications. You also learn about the apps for this purpose that come preinstalled on your smartphone or tablet, as well as some that are available to be downloaded and installed.
A Pleasant New C# Syntax for String Interpolation
By Bill Wagner
Aug 3, 2015
Does your C# code produce strings that combine text and computed values? The new features for string interpolation in C# 6 will make that code cleaner and clearer. Bill Wagner, author of Effective C#: 50 Specific Ways to Improve Your C#, Second Edition, shares his enthusiasm for this new feature's ability to let you do more with less.
Toad for Oracle Unleashed: Working with SQL
By Bert Scalzo, Dan Hotka
Aug 3, 2015
This chapter from Toad for Oracle Unleashed covers various aspects of the SQL Editor window, such as various modes to compile and execute code, using Toad history for past SQL, enhancing the interface to best fit your needs, using little-known items within the SQL Editor, code templates, and building SQL without typing.
Upgrading and Repairing PCs Tip #20: Power Cycling: When to Turn Your Computer Off
By Scott Mueller
Aug 3, 2015
When should you turn your computer off? In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott lists the various factors you need to consider when deciding whether or not to power off.
Upgrading and Repairing PCs Tip #19: Wireless Network Security Basics
By Scott Mueller
Jul 31, 2015
Wireless networks can be accessed by anyone within signal range. In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott explores security features included in wireless networks, such as encryption.
Upgrading and Repairing PCs Tip #18: Types of Networks
By Scott Mueller
Jul 30, 2015
PANS, LANS, WANS, MANS...In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott discusses different types of networks.
Using Native Platform Features in Xamarin.Forms Through DependencyService
By Wei-Meng Lee
Jul 30, 2015
Xamarin.Forms is platform-agnostic, and your single code base will work on all platforms. But if you want to perform platform-specific operations, you need to do some work, as Wei-Meng Lee shows.
Video: Docker Containers: Removing Containers and Images
By Christopher Negus
Jul 30, 2015
In this excerpt from Docker Containers LiveLessons, Chris Negus discusses several ways to go about clearing out unneeded containers and images.
Manifestations: Scrumban Demystified
By Ajay Reddy
Jul 29, 2015
In this introductory chapter from The Scrumban [R]Evolution: Getting the Most Out of Agile, Scrum, and Lean Kanban, Ajay Reddy describes the true essence of Scrumban.
Querying Neo4j with Cypher
By Steven Haines
Jul 29, 2015
Steven Haines concludes his three-part series on Neo4j with an overview of Cypher, Neo4j's custom query language. Learn by example how to build basic single-element queries, and then move on to structuring multiple-level queries that are surprisingly readable.
Upgrading and Repairing PCs Tip #17: Internet Connection Security Basics
By Scott Mueller
Jul 29, 2015
In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott discusses the most important things you can do for security when using a broadband Internet connection.
Network Switching Methods: Store-and-Forward Versus Cut-Through
By Sean Wilkins
Jul 28, 2015
Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, believes every network engineer should understand the differences between the two major switching methods employed in computer networks. This overview discusses the two methods from their initial deployments to modern usage.
Upgrading and Repairing PCs Tip #16: High-Speed Internet Access: Which Type is Right for You?
By Scott Mueller
Jul 28, 2015
In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott helps you make sense out of the confusing morass of plans available from cable modem, DSL, fixed wireless Internet, and satellite vendors.
Quick and Efficient PowerShell Script Debugging with Breakpoints
By Adam Bertram
Jul 27, 2015
Writing a perfect PowerShell script on the first try is next to impossible (though it's nice to dream). Debugging is a crucial skill for every developer, and learning easier and faster ways to find script problems can really improve the process. Adam Bertram explains how to use breakpoints to troubleshoot your PowerShell scripts.
Upgrading and Repairing PCs Tip #15: The Best Ways to Clean Your Computer Keyboard
By Scott Mueller
Jul 27, 2015
In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott offers some tips on keeping your keyboard sparkling and stick-free.
Working with ImageViews and Bitmaps in Android Application Development
By Carmen Delessio, Shane Conder, Lauren Darcey
Jul 27, 2015
In this chapter from Android Application Development in 24 Hours, Sams Teach Yourself, 4th Edition, you'll learn the details of handling images and bitmaps, including creating bitmaps, using drawing commands, and handling very large images.
Play to Learn, Play to Teach: The Value of Play in Learning New Technologies
By Elliott Hauser
Jul 24, 2015
Are you "All work, no play"? You're doing it wrong. Code instructor Elliott Hauser explains the importance of play in both teaching and learning, especially when it comes to technical subjects and skills.
Upgrading and Repairing PCs Tip #14: USB Security Risks
By Scott Mueller
Jul 24, 2015
USB drives have been used to spread many types of malware. In this excerpt from the 22nd edition of Scott Mueller's Upgrading and Repairing PCs, Scott offers some precautions you can take to protect your information and devices.

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