As you all know I got a job as a Linux Administrator Intern few months ago. I've finished Imran Afzal's course on udemy a month ago, which was 35.5 hrs long. I'm comfortable with Linux by now. But I feel I could do better. That's why I picked up a RHCSA course that I got for 15$ from reputed online site. Now, I want challenging problems of Linux like in programming there is leetcode, hackerrank etc. No, I don't need bash shell scripting for the job. I just need to perform basic activities.<p>I'm also thinking of purchasing RHCSA question bank from Ghada Atef on udemy after I finish this RHCSA course. What other activities could I do to improve my Linux skill.<p>I'm obviously using Linux in a vmware workstation pro and doing along with the course on laptop.