Harris, Shon creator text New Delhi Tata McGraw-Hill 2013 monographic xi, 468 p : ill. 24cm(pbk) by Shon Harris Includes index. Electronic data processing personnel Certification Telecommunications engineers Certification Computer networks Security measures Examinations Study guides Computer security Examinations Study guides 005.8 9781259064555 1259064557 ENG-107159 DBAD/PUB 20130515144602.0