Official self-study test preparation guide for the Cisco SNRS exam 642-502 *Attack threats *Router management and administration *Authentication, Authorization, and Accounting (AAA) and Cisco Secure Access Control Server *RADIUS and TACACS+ *Cisco IOS(R) Firewall feature set *Securing networks with Cisco routers *Mitigating Layer 2 attacks *IPsec and Easy Virtual Private Network (VPN) *Security Device Manager (SDM) CCSP SNRS Exam Certification Guide is a best-of-breed Cisco(R) exam study guide that focuses specifically on the objectives for the SNRS exam. Network security engineers Greg Bastien, Sara Nasseh, and Christian Degu share preparation hints and test-taking tips, helping you identify areas of weakness and improve your knowledge of router and switch security. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. CCSP SNRS Exam Certification Guide presents you with an organized test preparation routine through the use of proven series elements and techniques. "Do I Know This Already" quizzes open each chapter and allow you to decide how much time you need to spend on each section.Foundation summary information gives you a quick refresher whenever you need it. Challenging chapter-ending review questions help you assess your knowledge and reinforce key concepts. The companion CD-ROM contains a powerful test engine that allows you to focus on individual topic areas or take complete, timed exams. The assessment engine also tracks your performance and provides feedback module-by-module basis, presenting question-by-question remediation to the text. Well-regarded for its level of detail, assessment features, and challenging review questions and exercises, this book helps you master the concepts and techniques that will enable you to succeed on the exam the first time. CCSP SNRS Exam Certification Guide is part of a recommended learning path from Cisco Systems(R) that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press(R). To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.Companion CD-ROM The CD-ROM contains an electronic copy of the book and over 200 practice questions for the SNRS exam, all available in study mode, test mode, and flash card format. Includes a FREE 45-Day Online Edition This volume is part of the Exam Certification Guide Series from Cisco Press. Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears.