Eckert's LINUX+ and LPIC-1 GUIDE TO LINUX CERTIFICATION, 6th EDITION, empowers you with the knowledge and skills you need to succeed on CompTIA's Linux+ (XKO-005) certification exam and the Linux Professional Institute LPIC-1 (101-500 and 102-500) certification exams, as well as in your information technology career. The book covers the latest Linux distributions, as well as virtualization, containerization, cloud orchestration and enterprise storage. Comprehensive coverage also addresses key job-related services and cloud technologies, including firewalls, FTP, NFS, Samba, Apache, DNS, DHCP, NTP, Postfix, PostgreSQL, SSH, VNC, RDP, Docker and Kubernetes. Appendices allow you to apply your Linux knowledge to macOS and FreeBSD. Hands-on projects give you practice using the latest Fedora� and Ubuntu Linux distributions and can be performed on either a Windows PC (Intel or ARM) or macOS PC (Intel or Apple Silicon).
I've used a ton of resources, including other books, to learn how to navigate through Linux distros but this one by far is the best. I also had a few misconceptions cleared up, and some gaps filled in. If you are a beginner and work through this book cover to cover on an ubuntu machine, you'll gain the confidence you need to approach the Linux+ cert. I actually just borrowed this from a student, I don't want to give it back :(
Not the easiest book to read. And one warning, based on my classroom experience, most of the questions on quizzes are not directly from the book and required googling to identify what they are talking about.