The two leading Linux certification bodies, CompTIA and Linux Professional Institute (LPI), have joined forces to release two new Linux+ exams, LX0-101 and LX0-102. This new Sybex study guide breaks down everything you need to prepare for...

Fortunately for you, there's Schaum's Outlines. More than 40 million students have trusted Schaum's to help them succeed in the classroom and on exams. Schaum's is the key to faster learning and higher grades in every subject. Each Outline presents all the essential...

Completely revised and updated for all four new exams and reviewed and approved by CompTIA, this definitive volume covers everything you need to know to pass the CompTIA A+...

The U.S. government has mandated that all contractors–nearly all current CISSPs, and those yet to be certified as CISSPs–attain the security engineering subject certification Information Systems Security Engineering Professional (ISSEP). The ISSEP...

Millions of students trust Schaum's Outlines to help them succeed in the classroom and on exams. Schaum's is the key to faster learning and higher grades in every subject. Each Outline presents all the essential course information in an easy-to-follow,...

Gearing up for the AP Chemistry exam? AP Chemistry For Dummies is packed with all the resources and help you need to do your very best. This AP Chemistry study guide gives you winning test-taking tips, multiple-choice strategies, and topic guidelines, as well as great advice on optimizing your study time and hitting the top of your...

The Cisco IP Telephony focused certification tracks validate proficiency in designing, installing, and supporting a multiservice network solution. A solid understanding of quality-of-service (QoS) features and implementation is essential for all of the Cisco IP Telephony focused certifications and is also a core component of...