CompTIA A+ Core 2 Exam Guide to Operating Systems and Security

Jean Andrews has more than 30 years of experience in the computer industry as well as more than 13 years of teaching in the college classroom. She has worked in a variety of businesses where she's designed, written, and supported application software. She has also managed a computer repair help desk and handled troubleshooting for wide area networks. Ms. Andrews has written numerous books on software, hardware and the Internet. In addition to this bestselling A+ GUIDE TO IT TECHNICAL SUPPORT, she's written the A+ GUIDE TO HARDWARE: MANAGING, MAINTAINING AND TROUBLESHOOTING. She lives in north Georgia.

Joy Dark Shelton has worked in the IT field as a help-desk technician providing first-level support for a company with presence in 29 states. She has also worked as a second-tier technician in healthcare IT and as an operations specialist designing support protocols and structures, where her CompTIA A+ and HIT certifications have been particularly useful. As an instructor, Ms. Shelton has taught online IT and has taught English as a second language in the United States and South America. She has helped write several successful technical textbooks with Ms. Andrews. Ms. Shelton lives in northwest Georgia with her two daughters and pet Doberman.

Jill West authors Cengage courses for CompTIA Cloud+, CompTIA Network+, Data Communications, Technology for Success and the popular Shelly Cashman Series. She has taught kindergarten through college and currently teaches computer technology courses at Georgia Northwestern Technical College. Jill specializes in designing innovative, critical-thinking activities and building courses that teach to popular IT certifications. She regularly presents at conferences and webinars on preparing for CompTIA certifications, teaching cloud computing and computer networking and mentoring lifelong student learners in IT. She’s a member of the 2019 inaugural cohort of Faculty Ambassadors for AWS Educate and is currently an AWS Academy Accredited Educator. Jill and her husband, Mike, live in northwest Georgia with two children at home and two off to college.