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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:

TCP/IP Foundations

Webinar – Recorded | Nov. 12, 2020

Despite rapid advances in technology, and widespread use of networks over the last few decades, the TCP/IP v4 is still the predominant protocol in use. It is also quite surprising to see significant gaps or deficiencies in the foundational TCP/IP knowledge of many networking and IT professionals. This 1-hour webinar attempts to highlight the common areas of such gaps and how to overcome them. View the slide deck>>

Networking Foundations

Webinar – Recorded | Oct. 15, 2020

Despite rapid advances in technology, and widespread use of networks over the last few decades, the Fundamentals of Networking have not changed much. It is also quite surprising to see significant gaps or deficiencies in the foundational knowledge of many networking and IT professionals. This webinar attempts to highlight the common areas of such gaps and how to overcome them. View the slide deck >>

TCP/IP Foundations

Webinar – Recorded | Sep. 22, 2020

Despite rapid advances in technology, and widespread use of networks over the last few decades, the TCP/IP v4 is still the predominant protocol in use. It is also quite surprising to see significant gaps or deficiencies in the foundational TCP/IP knowledge of many networking and IT professionals. This 1-hour webinar attempts to highlight the common areas of such gaps and how to overcome them. View the slide deck>>

Networking Foundations

Webinar – Recorded | Aug. 18, 2020

Despite rapid advances in technology, and widespread use of networks over the last few decades, the Fundamentals of Networking have not changed much. It is also quite surprising to see significant gaps or deficiencies in the foundational knowledge of many networking and IT professionals. This webinar attempts to highlight the common areas of such gaps and how to overcome them. View the slide deck >>

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.

TCP/IP Foundations

Webinar – Recorded | July 14, 2020

Despite rapid advances in technology, and widespread use of networks over the last few decades, the TCP/IP v4 is still the predominant protocol in use. It is also quite surprising to see significant gaps or deficiencies in the foundational TCP/IP knowledge of many networking and IT professionals. This 1-hour webinar attempts to highlight the common areas of such gaps and how to overcome them. View the slide deck>>

Networking Foundations

Webinar – Recorded | June 09, 2020

Despite rapid advances in technology, and widespread use of networks over the last few decades, the Fundamentals of Networking have not changed much. It is also quite surprising to see significant gaps or deficiencies in the foundational knowledge of many networking and IT professionals. This webinar attempts to highlight the common areas of such gaps and how to overcome them. View the slide deck >>