CRAIG ZACKER is the author or co-author of dozens of books, manuals, articles, and websites on computing and networking, including Exam Ref 70-740 Installation, Storage and Compute with Windows Server 2016, and Exam Ref 70-744 Securing Windows Server 2016. He has also been an English professor, editor, network administrator, webmaster, corporate trainer, technical support engineer, minicomputer operator, literature and philosophy student, library clerk, darkroom technician, shipping clerk, and newspaper boy.