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Ray Brehm, CCNP, CCNA
United Computer Sales & Service, Inc.
Cherry Hill, NJ

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Constance Cate, CCNP, CCDP
Siemens ICN
The Colony, TX

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Chuck Church

[The ZONE's] simulated practice exams were an excellent tool to judge my progress and to identify my weak areas. The explanations given after each question were very helpful. ....With the knowledge and confidence that I received from this site, (and a lot of studying), I earned a score of 914/1000 on the CCNA exam.

Sincerely,
Michael P. Donnelly, CCNA"

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Larry Dwyer

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Colin Fabeny

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Joe Martin