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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

Mark Poplar

Certification Zone Study Guides by Mark Poplar:

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Mark Poplar is an accomplished network engineer with extensive experience designing networks, installing and configuring routers, switches, servers, and other Cisco and Microsoft products. A team leader at a network consultancy firm, he provides technical support and troubleshooting services to more than one hundred mid-sized corporations. He holds eight professional certifications, including CCDA, CCNA, MCT, MCSE, MCP, and CAN.

A graduate of California State University and Kent State University, he has published three books, Prep Guide for the CCDA Exam, Cisco CCNA Routing and Switching Exam Prep, and CompTIA's Network & Exam Prep. He has also contributed to Microsoft Certified Professional magazine.

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"This morning I passed [the CCIE written exam] with a 75%... The practice tests and white papers [at Certification Zone.com] are great. Well worth the money."

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