A system has frequent reboots. You are asked to check previous boot events and identify causes for the reboots. What approach should you take?
You're assisting in a kernel panic investigation. How can you gather historical panic messages and kernel crash information for analysis?
An engineer needs to consult Red Hat's official documentation to check kernel tuning parameters. How do you locate and verify this information online and offline?
You are auditing a system and must gather system boot and shutdown times over the past week. How can you do this efficiently using built-in tools?A. See the Explanation. Explanation: 1. Run last -x | grep shutdown to list shutdowns 2. Run last -x | grep reboot to list reboots 3. To filter specific days: last -x | grep "Apr 10" 4. Combine and sort for a timeline: last -x | grep -E "shutdown|reboot" > /tmp/boot_audit.txt 5. Share or store logs for review
You suspect a recent software update might have introduced a bug. How can you find all packages updated in the last 7 days and their history?
You are asked to troubleshoot a hardware-related issue on a RHEL server. As part of the initial diagnosis, you need to collect detailed hardware information including CPU, memory, motherboard, and BIOS version. What commands will you use and how?
