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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

Marc R. Menninger

Certification Zone Study Guides by Marc R. Menninger:

Basic Router Operation

Physical Connectivity

Marc R. Menninger works for Washington Mutual Bank. Marc's background is in secure networking and network performance testing. Marc was a computer/communications officer in the Air Force for five years prior to his happy transition to civilian life in 1997.

Marc received his bachelor's degree in Mathematics from the University of Tampa, where he was also the editor of the University's literary journal. Marc has obtained his CCNA certification and is actively pursuing the CCNP track.

Marc lives in Seattle with his wife Olga and chihuahua Faye. Marc likes to spend his free time going to movies and exploring the city of San Francisco.

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Jens Neelsen
CCNA
Muenster, Germany

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