Learn, prepare and practice for exam success CCNP Security IPS 642-627 Official Cert Guide is a best-of-breed Cisco exam study guide that focuses specifically on the objectives for the CCNP Security IPS exam. Senior security engineers David Burns, Odunayo Adesina and Keith Barker share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics.