Congratulations, you have found the most comprehensive and streamlined RHCSA study guide available. Most exam material is presented with concise introductions, with exam guidance in bold, & bulleted lists.The latest certification objectives are covered such as server virtualization, docker and containers, iSCSI, databases, full coverage of Bash shell scripting, and some other RHCE objectives that advanced administrators should know something about. Additions to the 3rd edition include: many simplified & clearer introductions, more example output, and additional material such as unit file automounts, more detailed exam guidance, and exercises.