This is Henry here having a good knowledge and understanding of basic and advanced concepts in wireless networking. I passed my Cisco Certified Internetwork Expert Routing and Switching exam in January 2005 and is one of a small percentage of Cisco Engineers that pass their CCIE labs on their first attempt. I qualified as a Cisco Certified Systems Instructor many years ago. I have been training Cisco courses for over 10 years and have delivered instructor led courses in various countries around the world covering a wide range of Cisco topics from CCNA to CCIE. Teaching has always been a passion for me. I have taught at the tertiary level for many years on the subjects of programming, control systems as well as systems integration. In the last few years I found myself incorporating more and more videos into the curriculum with amazing results.