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Learn more about the networking professionals who lend their experience to help you achieve your goals

To create its highly regarded networking information products, Certification Zone relies on the highest editorial standards. Other companies often use inexperienced or uncertified networking professionals to save money and cut corners. Certification Zone has always relied on a skilled group of world-class experts, who are certified and experienced, to write and develop our Cisco certification preparation products.

Technical Director Howard C. Berkowitz
Annlee Hines Barry Meinster Chris Ackerman Chuck Larrieu Dale Holmes Damarcus Richards Dan Farkas David Wolsefer Dennis Laganiere Don Dettmore	Galina Pildush Jason Sinclair John Neiberger Katherine Tallis Kevin Downes Keyur Shah Leigh Anne Chisholm Marc R. Menninger Marianne Lepp Mark Poplar	Mike Sweeney Peter A. Van Oene Priscilla Oppenheimer Richard Gosney Rita Puzmanova Rodgers Moore Ronald Trunk Scott Morris

David Wolsefer

Certification Zone Study Guides by David Wolsefer:

David Wolsefer is the East Coast Senior Networking Engineer for Totality, a leading Managed Services Provider (MSP) headquartered in San Francisco. David is a Cisco Certified Internetworking Expert (CCIE) #5858 in Routing and Switching and is currently scheduling a lab date to attempt a second CCIE in the Communications and Services track. David is also a Microsoft Certified Systems Engineer (MCSE). His areas of expertise include LAN/WAN infrastructure, network security, and IDC/ASP data center design and implementation. David holds a bachelor's degree from the University of Florida and has completed extensive post-graduate work in Applied Mathematics.

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JSI Netsystems, Piscataway, NJ
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