Full exam simulation
60 questions · 90 minutes, 0 unscored and not identified. One question per screen, flag and strike-out, a review screen and a score report per domain — no answers until you finish.
System architecture, installation and package management, GNU and Unix commands, and devices, filesystems and the FHS.
Independent practice — not affiliated with or endorsed by Linux Professional Institute. 101-500 is used only to identify the exam. Trademark notices
Share of questions per topic, from the official objective weights (60 points in total). Every sitting draws questions by these weights.
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60 questions · 90 minutes, 0 unscored and not identified. One question per screen, flag and strike-out, a review screen and a score report per domain — no answers until you finish.
20 questions · 30 min, same weights, all scored. A daily check.
20 questions aimed at your weakest domains, missed concepts and due reviews.
Pick domains, topics, how many questions and which pool (new, wrong, due, low confidence). Spaced repetition with confidence ratings, flashcards and a mistake book.
Open practiceOne domain, up to 20 questions.
Hardware settings, the boot process, runlevels and systemd targets.
Practice domain 1 →Disk layout, boot managers, shared libraries, Debian and RPM package management, Linux as a virtualization guest.
Practice domain 2 →The command line, text filters, file management, streams and pipes, processes and priorities, regular expressions and vi.
Practice domain 3 →Partitions and filesystems, integrity, mounting, permissions and ownership, links and the FHS.
Practice domain 4 →Domain names and weights come from the official 101-500 exam objectives (checked 2026-10-26). Always check it for the authoritative scope.
The real exam also has fill-in-the-blank questions; the simulator uses multiple-choice only.
Two of this exam's original questions, with the explanation you get after every answer.
A technician wants to browse the kernel's view of devices, buses and drivers as a tree of directories and attribute files. Which pseudo-filesystem is mounted at /sys for this purpose?
Correct: C. The kernel exports its device model through sysfs, mounted on /sys. procfs on /proc mainly exposes process and kernel runtime information, devtmpfs holds the device nodes in /dev, and tmpfs is a generic RAM-backed filesystem.
An administrator wants to stop the kernel from automatically loading the nouveau driver. Which actions achieve this? (Select TWO.)
Correct: A, C. A 'blacklist' line in /etc/modprobe.d/*.conf prevents automatic loading by alias, and modprobe -r removes the module that is already loaded. /proc/modules and /sys/module are kernel-generated views that cannot be edited this way, and lsmod has no disable option.