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2020 15 Top-Paying Certifications

Article | Aug. 16, 2021

Look back at the some of the highest paying IT certifications of 2020.

Optimizing DNS for Better Performance, Filtering, and Security

Article | May 03, 2021

Most Internet users don't realize that often a website or other service that seems slow to respond is actually working fine. Instead, it’s the resolution of DNS that is putting a glitch in your giddy up. Fortunately, there are several steps you can take to optimize your DNS to get better performance.

What is a LAN and Four Other Types of Area Networks

Article | March 05, 2021

Learn about the five types of area networks.

Layer 2 Device Overview

Video | Feb. 24, 2021

An quick fundamental overview of layer two devices.   To learn more about this and similar topics, enroll in our exclusive Understanding Networking Fundamentals course.    

What’s the Difference Between Hubs, Switches & Bridges?

Article | Dec. 17, 2020

The key difference between hubs, switches and bridges is that hubs operate at Layer 1 of the OSI model, while bridges and switches work with MAC addresses at Layer 2 of the OSI model.

Does a MAC Address Mean Apple Invented It?

Article | Dec. 15, 2020

While Apple has created many fine things, they were yet to be created themselves when Xerox PARC scientists created Media Access Control addresses. These MAC addresses are 48 bits or 6 bytes long, so they are also known as MAC-48 or EUI-48. EUI stands for Extended Unique Identifier. It is written in hexadecimal characters as shown below:

The 10 Most Important IT Skills for 2020

Article | Aug. 17, 2020

As IT departments struggle with skills gaps and businesses attempt to recovery economically from the COVID-19 pandemic, these 10 IT skills are essential to drive success. Job roles in these areas pay well, but decision-makers are struggling to find qualified candidates. If you’re looking to make an IT skills investment or start a new career path this year, these are the areas to consider.

Understanding Kubernetes Networking

Webinar – Recorded | July 15, 2020

Kubernetes automates container management. The process of container orchestration is so complex that trying to manage containers by hand has become impossible. There are many, components to container orchestration, but one of the most misunderstood is networking. In this 1-hour webinar we’ll explore how k8s actually performs IP networking and service discovery, two of the most critical components for successfully delivering microservices. We’ll examine how kubernetes carries the burden of cloud networking and lastly what it takes to pass the CKAD/CKA Certifications.

5 Most Popular IT Certifications for 2020

Article | May 11, 2020

While cybersecurity remains the most popular certification category in our IT Skills and Salary Report, foundational-level certifications highlight our list of the most popular IT certifications of 2020. 

Tech Talk: Ethics and Artificial Intelligence

Webinar – Recorded | April 21, 2020

IT Professionalism Europe (ITPE) and Global Knowledge jointly hosted online public “Tech Talk” on Ethics and Artificial Intelligence. Two leading speakers in the field, Dr. Anna Jobin of the Health Ethics & Policy Lab at ETH Zurich and Dr. Lorien Pratt, Chief Scientist and co-founder of Quantellia in Silicon Valley will be sharing their insights. The discussion includes ethical dimensions to artificial intelligence (AI) and why ethics are fundamental to AI research and implementation. They also explore ethical requirements, standards, and best practices that underpin the future of AI.