BRIJENDRA SINGH NETWORK SECURITY AND MANAGEMENT - 3 - PHI LEARINING PVT. LTD. 2012 - 400 ISBN: 9788120344976 Subjects--Topical Terms: DATA SECURITY [ Ciphers, Computer Viruses, Trojan Horses, Worms, Data Backup and Recovery, Computer Security, Network Security] Dewey Class. No.: 005.8 Q2 BRI