Clare Gough, CCIE(r) No. 2893, is a certified Cisco Systems instructor. She has worked with the developers of the BSCN and ACRC courses and taught the first commercial offering of the ACRC course. Clare holds master's degrees in education and information systems. Over the past 14 years, she has developed and taught a variety of networking and internetworking courses throughout the world. Clare is the author of the Cisco Press titles ACRC Exam Certification Guide and CCNP Routing Exam Certification Guide.