Linux Process and Service Management Questions

Technical topic covering operating system process and service management on Linux. Includes process states and hierarchies, signals and graceful termination, investigating processes with ps and top, interpreting the proc filesystem, managing daemons and services with systemctl and service commands, startup behavior, resource troubleshooting with top and free, log inspection in var log, and basic service restart and health check strategies. Candidates should be able to diagnose runaway processes and explain safe remediation steps.