BCMSN / Richard A. Deal. Deal, Richard A. Electronic data processing personnel Certification. Computer networks Examinations Study guides. Packet switching (Data transmission) Examinations Study guides. Multicasting (Computer networks) Examinations Study guides. QA76.3 .D42 2004 004.6 22 DEB "Exam 642-811."--Cover. Includes bibliographical references and index. [Indianapolis, Ind.] : Que Certification, c2004. c2004. 2004 Text xxxii, 492 p. : eng Exam cram 2