CCNP SWITCH 642-813 Official Certification Guide is a best-of-breed Cisco® exam study guide that focuses specifically on the objectives for the CCNP® SWITCH exam. Network architect and best-selling author Dave Hucaby shares preparation hints and test-taking tips, helping the reader identify areas of weakness and improve both conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing understanding and retention of exam topics.