Download or read book CCNA Security 640-554 Quick Reference written by Anthony J. Sequeira and published by Cisco Press. This book was released on 2012-04-30 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A> With this document as your guide, you will review topics on implementing Cisco IOS network security. This fact-filled Quick Reference allows you to get all-important information at a glance, helping you to focus your study on areas of weakness and to enhance memory retention of essential exam concepts.