Linux+ (XK0-006) evaluates whether you can translate concepts into admin decisions under time pressure, not whether you can recite trivia. This episode frames the exam as a set of domains that repeatedly test the same operational thinking: identify what the system is doing, confirm what “good” looks like, then apply the least-risk change that resolves the symptom. Performance-based questions (PBQs) are where that thinking is exposed because you must interpret outputs, choose commands, and sequence actions the way you would in a real terminal session. You’ll learn how to read a question for its intent, spot which domain it maps to, and avoid losing time chasing details that are not being tested.