The CompTIA Linux+ XK0-004 Cert Guide has a single goal: to help students pass the new version of the CompTIA Linux+ exam. The most comprehensive and time-efficient Linux+ study guide available, it's an extraordinarily cost-effective alternative to expensive training: a perfect resource for all Linux+ candidates. Written by long-time Linux trainers, it presents focused, straight-to-the-point coverage of all Linux+ exam topics. From start to finish, it's organized to help students focus their study time where they need the most help to retain more, and earn higher scores.