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Articles

Anthony Sequeira

In this chapter from CompTIA Network+ N10-006 Quick Reference, Anthony Sequeira discusses various WAN technologies, such as fiber, satellite, broadband cable, and WiMAX.

Sean Wilkins

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.

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.

This chapter from Implementing Cisco IP Switched Networks (SWITCH) Foundation Learning Guide: (CCNP SWITCH 300-115) begins the journey of exploring campus network design fundamentals by focusing on a few core concepts around network design and structure and a few details about the architecture of Cisco switches.

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Blogs

Ed Tittel

One of the benefits of a slight degree of notoriety -- or name recognition, at least -- is that one gets the occasional request to write or blog about IT certification for a variety of outlets and Websites. Over the past couple of decades that has meant working for a handful of training companies that include Global Knowledge, New Horizons, Pluralsight, Cramsession/PrepLogic, and others. Just this morning I got a phone call from one of them asking for articles and analysis, along with a request for IT cert topics worth covering. When I got on one of my favorite hobbyhorses  in response -- namely, the value of soft skills to IT professionals -- the reaction was tepid: "We've tried that, and it didn't resonate well with our audience."

Ed Tittel

Yes, although Software Defined Networking (SDN) and Network Functions Virtualization (NFV) have been out and about in the technology space for more than three years now, and plenty of major players offer interesting products and services in this vein, I'm still seeing enough of a gap between technology makers and service providers hawking these wares, and companies taking up such offers, to provide continuing ground for concern. This goes double for basic training and certification on SDN and NFV, where the number of options and offerings come nowhere near the number of players jockeying for advantage on this playing field.

Ed Tittel

In 1995, the Java programming language (produced by a talented team of programmers at Sun Microsystems, including its credited inventors James Gosling, Mike Sheridan, and Patrick Naughton) made its formal debut. That means this language is now 20 years old! I remember the beginning and have been working with and around Java ever since. Though security problems have somewhat tarnished Java's reputation, it continues to be both widely deployed and used, particularly for Web-based (or -integrated) applications. That probably explains why Java certs remain valuable even 20 years into its continuing history.

Ed Tittel

When MS announced on September 24, 2014 that it was making "select exams" available through online proctoring, I thought it was interesting, and was pleased to see this particular certification giant dips its toes into testing outside the typical testing center environment. In the past week, MS has made it known that all of its MCP and MTA exams are now available online, in more than 40 countries around the world, with all its remaining countries queued up to receive similar service (at least where the minimum bandwidth requirement of 512 Kbps up and down can be met). This is big news!

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