Resource Library

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.

Explore how IT decision-makers’ training views have changed since we first released our annual IT Skills and Salary Report 12 years ago. Once viewed as an expense, IT leadership now sees professional development as an investment. Even with shrinking budgets and a recent rise in skills gaps, the value of training is currently at an all-time high.

My most recent blog addressed whether PMP and CAPM boot camps are worth the time and effort. I concluded that for most exam writers, it really did make sense to buckle down and take advantage of all that a quality boot camp offers.

The process of learning how to subnet IP addresses begins with understanding binary numbers and decimal conversions along with the basic structure of IPv4 addresses. This paper focuses on the mathematics of binary numbering and IP address structure.

Samuel Brown, project management instructor and consultant, has taught Global Knowledge courses for more than fifteen years. In this video clip, Samuel discusses Global Knowledge's unique and effective approach to helping students prepare for PMP certification.