CIT / Sean Odom. Odom, Sean. Cisco Systems, Inc. Examinations Study guides. Electronic data processing personnel Certification. Computer networks Examinations Study guides. Internetworking (Telecommunication) Examinations Study guides. QA76.3 .O355 2004 004.6 22 ODC "Exam 642-831."--Cover. "Cisco Certified Network Professional."--Cover. Includes index. [Indianapolis, Ind.] : Que Certification, c2004. c2004. 2004 Text xxxvi, 506 p. : eng Exam cram 2