Denise Donohue, CCIE #9566, CCSI #22521, Business Architect #0009, is a Network Architect with Chesapeake NetCraftsmen. She has authored or co-authored several Cisco Press books covering data and voice networking technologies. Her CCIE is in Routing and Switching.
Brent Stewart, CCNP, CCDP, MCSE, is a certified Cisco Systems instructor and teaches at Global Knowledge. As a Global Knowledge employee, he participated in the development of ICND, BSCI, BCMSN, BCRAN, and CIT for Internet-based delivery.