Certification Zone's dynamically generated Practice Exams test your overall knowledge of the technical topics found on Cisco's CCNA™, CCNP™ and CCIE™ exams. All of Certification Zone's Practice Exams are randomly created from an extensive database of questions written by Certification Zone's experts. Certification Zone's unique and comprehensive scoring analysis indicates which areas require more focus by technical topic, identifies correct and incorrect answers, and provides answers and explanations for questions.