Walker, Matthew. <br/><br/>
CEH Certified Ethical Hacker:   all-in-one exam guide / 
 CEH, Certified Ethical Hacker : exam guide : all-in-one 
Matt Walker ; technical editor, Brad Horton ; contributing editor, Angie Walker. 
 - New York :  McGraw-Hill,  c2012. 
 - 1 online resource (1 v.) :  ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781283354301 (electronic bk.) 9780071772280 1283354306 0071772286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing personnel--Certification.<br/>Computer security--Examinations<br/>Penetration testing (Computer security)--Examinations<br/>Computer hackers--Examinations<br/>Computer networks--Examinations