"CCNP Security Secure 642-637 Official Cert Guide is a comprehensive self-study tool for preparing for the Secure exam. This book teaches you how to secure Cisco IOS Software router and switch-based networks and provide security services based on Cisco IOS Software. Complete coverage of all exam topics as posted on the exam topic blueprint ensures you will arrive at a thorough understanding of what you need to master to succeed on the exam. The book follows a logical organization of the Secure exam objectives. Material is presented in a concise manner, focusing on increasing your retention and recall of exam topics"--Research description page.