1. What does crontab -e do? Junior A. list the current user's cron jobs B. list active systemd timers and next run times C. edit the current user's cron jobs D. schedule a one-time command to run in an hour
2. Which command will edit the current user's cron jobs? Junior A. systemctl list-timers B. crontab -l C. at now + 1 hour D. crontab -e
3. Which statement is correct? Junior A. crontab -e — edit the current user's cron jobs B. crontab -e — list the current user's cron jobs C. crontab -e — list active systemd timers and next run times D. crontab -e — schedule a one-time command to run in an hour
4. What does crontab -l do? Junior A. list active systemd timers and next run times B. edit the current user's cron jobs C. list the current user's cron jobs D. schedule a one-time command to run in an hour
5. Which command will list the current user's cron jobs? Junior A. systemctl list-timers B. at now + 1 hour C. crontab -e D. crontab -l
6. Which statement is correct? Junior A. crontab -l — list the current user's cron jobs B. crontab -l — schedule a one-time command to run in an hour C. crontab -l — edit the current user's cron jobs D. crontab -l — list active systemd timers and next run times
7. What is ***/15 * * * ***? Mid A. a cron schedule meaning every 15 minutes B. runs periodic jobs that were missed while the system was off C. the systemd-timer directive that schedules by calendar time D. a directory of scripts run once per day by cron/anacron
8. Which term means: "a cron schedule meaning every 15 minutes"? Mid A. anacron B. /etc/cron.daily C. systemd timer OnCalendar D. */15 * * * *
9. Which statement is correct? Mid A. */15 * * * * — the systemd-timer directive that schedules by calendar time B. */15 * * * * — a cron schedule meaning daily at 02:00 C. */15 * * * * — minute, hour, day-of-month, month, day-of-week D. */15 * * * * — a cron schedule meaning every 15 minutes
10. What is cron five fields ? Junior A. runs periodic jobs that were missed while the system was off B. a directory of scripts run once per day by cron/anacron C. minute, hour, day-of-month, month, day-of-week D. the systemd-timer directive that schedules by calendar time
11. Which term means: "minute, hour, day-of-month, month, day-of-week"? Junior A. 0 2 * * * B. cron five fields C. systemd timer OnCalendar D. */15 * * * *
12. Which statement is correct? Junior A. cron five fields — a cron schedule meaning daily at 02:00 B. cron five fields — the systemd-timer directive that schedules by calendar time C. cron five fields — a directory of scripts run once per day by cron/anacron D. cron five fields — minute, hour, day-of-month, month, day-of-week
13. What is systemd timer OnCalendar ? Mid A. minute, hour, day-of-month, month, day-of-week B. runs periodic jobs that were missed while the system was off C. a cron schedule meaning daily at 02:00 D. the systemd-timer directive that schedules by calendar time
14. Which term means: "the systemd-timer directive that schedules by calendar time"? Mid A. anacron B. /etc/cron.daily C. */15 * * * * D. systemd timer OnCalendar
15. Which statement is correct? Mid A. systemd timer OnCalendar — a cron schedule meaning daily at 02:00 B. systemd timer OnCalendar — a directory of scripts run once per day by cron/anacron C. systemd timer OnCalendar — a cron schedule meaning every 15 minutes D. systemd timer OnCalendar — the systemd-timer directive that schedules by calendar time
16. What does at now + 1 hour do? Junior A. list active systemd timers and next run times B. edit the current user's cron jobs C. schedule a one-time command to run in an hour D. list the current user's cron jobs
17. Which command will schedule a one-time command to run in an hour? Junior A. at now + 1 hour B. crontab -l C. crontab -e D. systemctl list-timers
18. Which statement is correct? Junior A. at now + 1 hour — list the current user's cron jobs B. at now + 1 hour — schedule a one-time command to run in an hour C. at now + 1 hour — list active systemd timers and next run times D. at now + 1 hour — edit the current user's cron jobs
19. What does systemctl list-timers do? Mid A. schedule a one-time command to run in an hour B. edit the current user's cron jobs C. list the current user's cron jobs D. list active systemd timers and next run times
20. Which command will list active systemd timers and next run times? Mid A. crontab -e B. systemctl list-timers C. crontab -l D. at now + 1 hour
21. Which statement is correct? Mid A. systemctl list-timers — schedule a one-time command to run in an hour B. systemctl list-timers — edit the current user's cron jobs C. systemctl list-timers — list active systemd timers and next run times D. systemctl list-timers — list the current user's cron jobs
22. What is **0 2 * * ***? Junior A. a cron schedule meaning every 15 minutes B. the systemd-timer directive that schedules by calendar time C. a directory of scripts run once per day by cron/anacron D. a cron schedule meaning daily at 02:00
23. Which term means: "a cron schedule meaning daily at 02:00"? Junior A. cron five fields B. 0 2 * * * C. systemd timer OnCalendar D. /etc/cron.daily
24. Which statement is correct? Junior A. 0 2 * * * — a directory of scripts run once per day by cron/anacron B. 0 2 * * * — a cron schedule meaning daily at 02:00 C. 0 2 * * * — a cron schedule meaning every 15 minutes D. 0 2 * * * — runs periodic jobs that were missed while the system was off
25. What is /etc/cron.daily ? Mid A. runs periodic jobs that were missed while the system was off B. minute, hour, day-of-month, month, day-of-week C. a cron schedule meaning every 15 minutes D. a directory of scripts run once per day by cron/anacron
26. Which term means: "a directory of scripts run once per day by cron/anacron"? Mid A. /etc/cron.daily B. 0 2 * * * C. anacron D. systemd timer OnCalendar
27. Which statement is correct? Mid A. /etc/cron.daily — a directory of scripts run once per day by cron/anacron B. /etc/cron.daily — a cron schedule meaning every 15 minutes C. /etc/cron.daily — runs periodic jobs that were missed while the system was off D. /etc/cron.daily — minute, hour, day-of-month, month, day-of-week
28. What is anacron ? Mid A. a cron schedule meaning daily at 02:00 B. runs periodic jobs that were missed while the system was off C. minute, hour, day-of-month, month, day-of-week D. a directory of scripts run once per day by cron/anacron
29. Which term means: "runs periodic jobs that were missed while the system was off"? Mid A. /etc/cron.daily B. cron five fields C. anacron D. 0 2 * * *
30. Which statement is correct? Mid A. anacron — a cron schedule meaning every 15 minutes B. anacron — minute, hour, day-of-month, month, day-of-week C. anacron — the systemd-timer directive that schedules by calendar time D. anacron — runs periodic jobs that were missed while the system was off