Pawan K. Bhardwaj is an independent technical trainer and author who holds MCSE, MCSA, Security+, Network+, I-Net+, and A+ certifications. He teaches Windows Administration and Networking classes and provides consulting to training institutions. An author and contributor to 14 books, Bhardwaj is the author of O'Reilly's MCSE Core Elective Exams in a Nutshell, and coauthor of MCSA on Windows Server 2003 Core Exams in a Nutshell.