The CompTIA Security+ SY0-401 certification validates foundation-level security knowledge and skills and is recognized by organizations around the world. As an example, the U.S. Department of Defense requires personnel to have this certification to retain administrative access.
CompTIA Security+: Get Certified Get Ahead: SY0-401 Study Guide (ISBN 978-1939136022) covers all six domains of the Security+ exam. At the beginning of the book, you’ll find a listing of all the objectives along with the specific chapter where the objective is covered. Each chapter includes a list of the specific objectives covered in the chapter and Remember This blocks are sprinkled throughout to remind you of key information you’ll need for the exam.
It includes a pretest at the beginning of the book, practice test questions at the end of each chapter, and a post test at the end of the book. All of the practice test questions include detailed explanations so you’ll know why the correct answer is correct, and why the incorrect answers are incorrect.
Of course, there are also some great courses that many people find valuable to help them prepare. Infosec Institute hosts a five-day CompTIA Security+ Boot Camp taught by an expert security instructor. They also have Security+ Online Training in two separate formats depending on your needs.
You can view the full excerpt on the Infosec Institute site.