Joshua Abraham, CCIE #22880
Dear Brians and Team, Happy to let you know that I passed my CCIE R&S lab yesterday at Bangalore. I had used your COD, R&Sv4.1's Vol I, II , III and Blog, extensively. The content is excellent and very reasonably priced. Thanks for upholding such quality, consistently. I have no difficulty recommending your material, or using it for my future studies.