Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

During nightly operations on a RHEL-based file-ingest server, the systemd status for ingest.service shows:

Main process exited, code=killed, status=9/KILL

The application's own log ends abruptly with the single line "Killed", and monitoring indicates that system memory was completely consumed at the same time. You need to verify whether the Linux kernel's OOM (out-of-memory) killer terminated the job. Which command will provide the most direct evidence?

  • sealert -a /var/log/audit/audit.log

  • tail -n 100 /var/log/secure

  • ps -eo pid,oom_score --sort=-oom_score | head

  • journalctl -k | grep -i 'out of memory'

CompTIA Linux+ XK0-006 (V8)
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