Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for the CCNP Enterprise Design ENSLD 300-420 exam. Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, CCNP Enterprise Design ENSLD 300-420 Official Cert Guide, Second Edition, helps you master the concepts and techniques that ensure your exam success and is the only self-study resource approved by Cisco. Expert authors Anthony Bruno and Steve Jordan share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.