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CCNP Security SISAS 300-208 Official Cert Guide: Authentication Policies
By Aaron Woland, Kevin Redmon
May 6, 2015
In this chapter from CCNP Security SISAS 300-208 Official Cert Guide, the authors discuss network authentication policies.
Video: Dean Leffingwell on the Value of Using the Scaled Agile Framework (SAFe)
By Dean Leffingwell
May 6, 2015
Dean Leffingwell, founder and CEO of Scaled Agile, Inc., discusses his new video, "Leading Scaled Agile Framework (SAFe) LiveLessons," results that enterprises who adopt SAFe are seeing, the must-have SAFe practices, and the keys to successful enterprise adoption of SAFe.
Collision Domains and Broadcast Domains = Apples and Oranges
By Sean Wilkins
May 5, 2015
Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, doesn't approve of blurring collision domains and broadcast domains. Though these models are often taught together, modern technology has outpaced some of the ideas, and networking specialists who are new to the field need to distinguish between current terminology and outdated concepts.
The Big Nerd Ranch Guide to Structures and Classes in Swift
By Aaron Hillegass, Nate Chandler, Adam Preble
May 4, 2015
In this chapter from Cocoa Programming for OS X: The Big Nerd Ranch Guide, 5th Edition, you will build a simple 2D physics simulation. You will create your own structure and a few classes, and you will learn about the differences between them.
Performance Advice for Beginning Java Programmers
By Charlie Hunt
Apr 30, 2015
Charlie Hunt, author of Java Performance LiveLessons, offers advice on how to be successful at meeting a Java application's performance expectations.
Ruby: The Last Eight Years
By Hal Fulton
Apr 29, 2015
Hal Fulton, author of The Ruby Way, points out some of the extensive changes Ruby has experienced in less than a decade. By paying attention to why and how programming languages evolve, we can learn from experience and past mistakes, deliberately changing the language (and especially our usage of it) for a better future.
What's New in Apache Cordova 4?
By John M. Wargo
Apr 29, 2015
The latest version of the open source framework Apache Cordova brings many changes, particularly in the command-line interface, plugins, and WebView. John M. Wargo, author of Apache Cordova 4 Programming, points out his favorite features and others whose improvements will simplify your development process.
Mastering iOS Frameworks: Working with and Parsing JSON
By Kyle Richter, Joe Keeley
Apr 28, 2015
This chapter from Mastering iOS Frameworks: Beyond the Basics, 2nd Edition demonstrates how to parse and present JSON from a sample message-board server in an app, and encode a new message entry in JSON to send to the server.
Video: Leading SAFe (Scaled Agile Framework): Organize an Agile Release Train
By Dean Leffingwell
Apr 28, 2015
In this excerpt from Leading SAFe (Scaled Agile Framework) LiveLessons (Video Training), Dean Leffingwell discusses implementing the agile release train, which is the primary value delivery vehicle inside the scaled agile framework.
How to Become a Better Java Developer
By Cay S. Horstmann
Apr 27, 2015
Cay Horstmann, author of the classic Core Java and the thoroughly modern Core Java for the Impatient, wasn't always a Java expert. In this article, he talks about the psychology of becoming an expert developer. Learn the effective strategies he suggests for beginners and programmers who have mastered the basics.
Gaining Code Confidence Through Testing
By Steven Foote
Apr 24, 2015
Steven Foote, author of Learning to Program, explains why testing your code is an essential stage not only in improving the code, but increasing your confidence in it. Learn why automated tests are crucial to the coding process, how to write successful unit tests, when to test your code, and more.
Video: Introduction to Leading SAFe (Scaled Agile Framework) LiveLessons
By Dean Leffingwell
Apr 23, 2015
In this excerpt from Leading SAFe (Scaled Agile Framework) LiveLessons, Dean Leffingwell introduces the Scaled Agile Framework (SAFe) and its underlying principles of lean thinking, agile development, and product development flow.
Working with Photos, Graphics, and Other Objects in Pages Documents
By Brad Miser
Apr 22, 2015
In this chapter from My Pages, Numbers, and Keynote (for Mac and iOS), you learn how to include photos and other graphics in your Pages documents.
Video: Large Scale C++: Logical/Physical Coherence
By John Lakos
Apr 21, 2015
In this excerpt from Large-Scale C++ LiveLessons (Workshop): Applied Hierarchical Reuse Using Bloomberg's Foundation Libraries, John Lakos discusses logical/physical coherence, where each logical subsystem is tightly encapsulated by a corresponding physical aggregate.
Anatomy of a Cordova Application
By John M. Wargo
Apr 21, 2015
Using Apache Cordova 4, you can leverage native technologies and web standards to quickly build cross-platform apps for most mobile devices. In this chapter from Apache Cordova 4 Programming, John M. Wargo shows you what makes a web application a Cordova application and gives you a tour of the sample application the Cordova team provides.
Understanding the Windows PowerShell Release Cycle
By Timothy Warner
Apr 20, 2015
Timothy Warner, author of Sams Teach Yourself Windows PowerShell 5 in 24 Hours, explains how Windows PowerShell releases are related to Windows version releases and which bits go with what. It's not a 1:1 relationship, so you might need to uninstall if things don't go quite as expected. With Tim's help and the Windows Management Framework, you'll get it right from the start.
Video: Introduction to Information Security: Understand Vulnerabilty Assessments and Pentesting
By Scott Aurnou
Apr 17, 2015
Vulnerability and pentesting are both effective ways to check the status of your organization's security posture. In this excerpt from Introduction to Information Security LiveLessons (Video Training), Scott Aurnou discusses the three basic steps of vulnerability assessments and the proper use of penetration testing.
What Parts of Your Resume Create an Unconscious Bias?
By Thursday Bram
Apr 16, 2015
Your resume says a lot more about you than just your skills and work history. Business writer Thursday Bram gives hints to your gender, race, and other characteristics that can bias hiring managers against you.
Browsing the Web with Your Samsung Galaxy Note 4
By Craig James Johnston, Guy Hart-Davis
Apr 14, 2015
In this chapter from My Samsung Galaxy Note 4, discover how to browse the World Wide Web, including how to browse incognito, using the Chrome browser app that comes with your Galaxy Note 4.
A VMware Administrator's Guide to Setting Up a DevOps Configuration Management Test Environment
By Trevor A. Roberts, Josh Atwell, Egle Sigler, Yvo van Doorn
Apr 13, 2015
Learn about the foundational tools that you will need to build your test environments. This chapter from DevOps for VMware Administrators covers environment provisioning with AutoLab and Vagrant, creating images with Packer, managing source code, and Git source code control.

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