Authorized Self-Study Guide Designing Cisco Network Service Architectures (ARCH) Second Edition Foundation learning for ARCH exam 642-873 Keith Hutton Mark Schofield Diane Teare Designing Cisco Network Service Architectures (ARCH), Second Edition, is a Cisco(R)-authorized, self-paced learning tool for CCDP(R) foundation learning. This book provides you with knowledge of the latest developments in network design and technologies, including network infrastructure, intelligent network services, and converged network solutions. By reading this book, you will gain a thorough understanding of issues and considerations for fundamental infrastructure services, including security, network management, QoS, high availability, bandwidth use optimization through IP multicasting, and design architectures for network solutions such as voice over WLAN and e-commerce.