A primary text for courses in network design and cisco certification.Ccda exam certification guide offers a comprehensive coverage of the ccda exam #640-441. Coverage of all exam topics ensures students will arrive at a complete understanding of the subject matter that must be mastered for the ccda exam. Ccda exam certification guide follows a logical organization of the ccda exam objectives. The exam-specific chapter topics are design goals, customer objectives, application considerations, lan design, wan design, designing for specific protocols, putting it all together, building a prototype or model, and additional case studies. Scenario-based exercises and chapter-ending review questions reinforce retention and recall of exam topics. Finally, unique practice questions on the companion cd enable candidates to build and take random sample tests, including selective testing by topic area. Progress tracking helps the reader identify his or her weak areas by displaying the incorrectly answered questions and providing a link to the chapter for additional study.