Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

While investigating intermittent kernel panics on an x86-64 Linux server, you see a growing number of messages such as:

[Hardware Error]: Corrected error, no action required.
[Hardware Error]: CPU:0 Machine Check: 0 Bank 7: b600000000100153

Management wants to receive an alert whenever a single DIMM logs more than ten corrected ECC events in any 24-hour period so the module can be replaced during the next maintenance window.

Which ONE of the following actions will BEST meet this requirement and provide ongoing decoding of Machine Check Exceptions (MCEs)?

  • Install the mcelog package, enable its daemon, and set ce-error-threshold = 10 / 24h in /etc/mcelog.conf.

  • Configure smartd with -I 194 and -I 198 directives to watch for increasing disk-error counters.

  • Add memtest86+ to the GRUB menu so memory is automatically tested on every reboot.

  • Enable the kernel's NMI watchdog by setting kernel.nmi_watchdog=1 and monitor /proc/interrupts for anomalies.

CompTIA Linux+ XK0-006 (V8)
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