RHCSA Study Guide 2026
Everything you need to pass the RHCSA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 RHCSA Exam Format at a Glance
📚 RHCSA Topics to Study (69)
✍️ Sample RHCSA Questions & Answers
1. Which command sets a user account to expire on December 31, 2026?
Both `usermod -e` and `chage -E` accept a YYYY-MM-DD date and set the account expiration date.
2. What is the correct way to persistently mount an ISO image file /images/rhel.iso at /mnt/iso using /etc/fstab?
ISO images require the 'loop' mount option in fstab to attach them via the loop device, along with the iso9660 filesystem type.
3. Where does a system obtain its first supply of time when it starts up?
When a system is started, it initially gets the system time from the hardware clock, also known as the real-time clock (RTC) or the BIOS clock. The hardware clock is a component of the computer's motherboard that keeps track of the current time and date even when the system is powered off or restarted.
4. Which command displays detailed information about an installed RPM package including its description and install date?
rpm -qi shows package info (name, version, description, install date); -ql lists files, -qd lists docs, -qR lists dependencies.
5. What does 'firewall-cmd --zone=public --query-service=https' return?
--query-service returns 'yes' if the service is active in the zone at runtime, 'no' otherwise.
6. A cron job entry reads: `*/15 * * * * /script.sh`. How often does it run?
`*/15` in the minute field means 'every 15 minutes' (0, 15, 30, 45).