A server’s sensitive logs must be retained for compliance after decommissioning. Which command archives them securely?

A server’s RAID controller reports a predictive failure on a disk. What’s the proactive response?

A Windows server needs a scheduled task to reboot weekly. Which command sets this up?

A server’s performance drops, and iostat shows high disk utilization on /dev/sda. Which command identifies the process causing it?

A server’s data was lost due to a failed backup script. The script ran but didn’t copy files. What should have been verified?

A server cluster needs redundancy for a critical service. Which protocol should you configure for IP failover?

A server’s application fails to start, and journalctl shows "disk quota exceeded." df -h shows space available. What’s the next step?

A server’s SSH logs show repeated failed login attempts from an unknown IP. Which command blocks this IP?

A server hosting a database needs its storage expanded without downtime. Which command adds a new disk to an existing LVM volume?

A server’s new memory module causes random reboots. The BIOS logs show "memory parity error." What’s the immediate action?