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VLAN Configuration Fundamentals and Commands
By Sean Wilkins
Jun 15, 2015
After becoming familiar with basic VLAN concepts, you need to learn how to configure your organization's networks and devices. Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, discusses important concepts and commands you will use in setting up networks and getting devices to talk to each other.
Wireless LAN Implications, Problems, and Solutions
By Jim Geier
Jun 15, 2015
When designing and supporting a WLAN, however, you must be aware of potential implications, such as security vulnerabilities, radio signal interference, multipath propagation, and other issues. This chapter from Designing and Deploying 802.11 Wireless Networks explains the impacts of these problems and introduces some ways to resolve them.
Notes from WWDC 2015: Playing in a GameplayKit Wonderland
By Erica Sadun
Jun 13, 2015
Integrate low-cost high-reward gaming features into your apps with Apple's new GameplayKit framework. In this article, Erica Sadun, author of The Gourmet iOS Developer's Cookbook: Even More Recipes for Better iOS App Development, explores this new technology.
Microwave Integrated Circuits
By Kyung-Whan Yeom
Jun 12, 2015
This chapter from Microwave Circuit Design: A Practical Approach Using ADS discusses the classification of microwave integrated circuits and the use of microwave circuits in a communication system.
Notes from WWDC 2015: The Enumerated Delights of Swift 2.0 Option Sets
By Erica Sadun
Jun 12, 2015
Swift 2.0 contains a mix of updated, redesigned, and completely new features. In this article, Erica Sadun, author of The Gourmet iOS Developer's Cookbook: Even More Recipes for Better iOS App Development, discusses one of her favorites.
Notes from WWDC 2015: Failing Gracefully: Swift 2.0 Error Handling
By Erica Sadun
Jun 11, 2015
Swift 2.0 introduces new ways to handle error conditions. In this article, Erica Sadun, author of The Gourmet iOS Developer's Cookbook: Even More Recipes for Better iOS App Development, explores Swift's updated syntax.
The Gourmet iOS Developer's Cookbook: Dynamic Animators
By Erica Sadun
Jun 11, 2015
Dynamic animators are tremendously fun. They help make your UIs pop and are well worth exploring to discover what features they can provide your users. Erica Sadun explores dynamic animators in this chapter from The Gourmet iOS Developer's Cookbook: Even More Recipes for Better iOS App Development.
Windows PowerShell: Peering Through the Pipeline
By Timothy L. Warner
Jun 11, 2015
You've probably done at least a little pipeline work with Windows PowerShell. Did you get the expected results every time? Timothy Warner, author of Sams Teach Yourself Windows PowerShell 5 in 24 Hours, points out how most of us go wrong when piping. Learn more powerful ways to use the pipeline.
C# 6: Expression Bodied Members Simplify Your Code
By Bill Wagner
Jun 10, 2015
In a series of articles, Bill Wagner, author of Effective C#: 50 Specific Ways to Improve Your C#, Second Edition, explores some of the powerful new features in Visual Studio 2015 that will soon become familiar friends. This article discusses how to simplify your C# code with the precise syntax of expression bodied members, saving time, keystrokes, and processor overhead.
Finding Widgets and Using Quick Briefing with Your Samsung Galaxy Tab S
By Eric Butow
Jun 10, 2015
In this chapter from My Samsung Galaxy Tab S, Eric Butow shows you how to find widgets on the Galaxy Tab S, get weather information, use Flipboard, add and view videos, access web bookmarks, and use the Quick Briefing Home screen.
Notes from WWDC 2015: Restructuring the Apple Developer Program
By Erica Sadun
Jun 10, 2015

While the WWDC keynote focused on music and consumers, exciting changes were brewing for developers. In this article, Erica Sadun, author of The Gourmet iOS Developer's Cookbook,, begins the discussion some of the most earth-shattering changes introduced this week. Today's topic? Apple's developer program.

Desired State Configuration Basics in Windows PowerShell
By Timothy L. Warner
Jun 9, 2015
This chapter from Windows PowerShell in 24 Hours, Sams Teach Yourself, explains the historical background of DSC, basic tenets of DSC, the DSC authoring environment, configuring the DSC environment, writing your first configuration script, and DSC push configuration.
Ruby on Rails Tutorial: A Toy App
By Michael Hartl
Jun 8, 2015
In this chapter from Ruby on Rails Tutorial: Learn Web Development with Rails, 3rd Edition, Michael Hartl develops a toy demo application to show off some of the power of Rails. The purpose is to get a high-level overview of Ruby on Rails programming (and web development in general) by rapidly generating an application using scaffold generators, which create a large amount of functionality automatically.
Why Not Learn Python?
By Robert Sedgewick
Jun 8, 2015
Bob Sedgewick was dragged kicking and screaming into Python programming, but found himself using it much more often than he ever thought he would. In this article, Bob explains why he and his co-authors wrote Introduction to Programming in Python, and why you might want to learn Python, too.
Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: Campus Network Architecture
By Richard Froom, Erum Frahim
Jun 4, 2015
This chapter from Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: (CCNP SWITCH 300-115) covers implementing VLANs and trunks in campus switched architecture, understanding the concept of VTP and its limitation and configurations, and implementing and configuring EtherChannel.
Optional Values in Swift
By BJ Miller
Jun 4, 2015
BJ Miller, author of iOS Swift Programming By Example LiveLessons (Video Training), discusses some basics that Swift programmers need to understand, such as the use of nil and special characters when used (carefully) to create optionals that give your code more flexibility.
Simple Workflow and Passive Debugging in XCode
By Fritz Anderson
Jun 3, 2015
This chapter from Xcode 6 Start to Finish: iOS and OS X Development, 2nd Edition steps you up to writing and running a program of your own. It introduces the first level of debugging: what to do when your program crashes. It turns out that Xcode offers good facilities to help you analyze a crash without you having to do much.
Responsive Web Design Can Help Your Ranking in Google
By Jennifer Kyrnin
Jun 2, 2015
Jennifer Kyrnin, author of Sams Teach Yourself Responsive Web Design in 24 Hours, advises website designers to focus on mobile devices first. Google gives lower search rankings to sites with problems on smartphones and other small devices. Visitors also are more likely to leave a site that doesn't work well on phone or tablet screens. Learn how to use RWD to make your site more functional and attractive to the users of mobile devices.
Translating Effective Python into Go: Know When to Use Channels for Generator-Like Functions
By Brett Slatkin
Jun 2, 2015
Used together, channels and goroutines in the Go programming language provide very similar behavior to Pythonโ€™s generator functions. Brett Slatkin, author of Effective Python: 59 Specific Ways to Write Better Python, shows how to translate his advice for Python generators into best practices for Go functions.
DevOps: A Software Architect's Perspective of Overall Architecture
By Len Bass, Ingo Weber, Liming Zhu
Jun 1, 2015
In this chapter from DevOps: A Software Architect's Perspective, the authors discuss how DevOps achieves its goals partially by replacing explicit coordination with implicit and often less coordination, and how the architecture of the system being developed acts as the implicit coordination mechanism. They begin by discussing whether DevOps practices necessarily imply architectural change.

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