Process and System Monitoring

Check skills in managing processes and monitoring system resources.

1. Which command is used to display real-time system statistics including CPU, memory, and processes?
2. What does PID stand for in process management?
3. Which process state indicates a process is waiting for an event (e.g., I/O) to complete?
4. Which tool is primarily used to monitor disk I/O statistics?
5. In the 'ps' command, which option displays all processes for all users?
6. What does the 'load average' in system monitoring represent?
7. Which command is used to list open files by processes?
8. What is the default output of the 'free' command?
9. Which of the following are common process states in Unix-like systems?
10. Which tools can be used to monitor network connections?
11. Which options for the 'top' command sort processes by memory usage?
12. What information can be obtained from the 'vmstat' command?
13. Which are considered system monitoring daemons/services?
14. A zombie process is a process that has completed execution but still has an entry in the process table.
15. The 'htop' command is a text-mode interface similar to 'top' but with additional features like mouse support.
16. The 'df' command is used to display free disk space.
17. A process with PID 1 is typically the 'systemd' process on modern Linux systems.
18. What is the 3-letter abbreviation for the tool used to collect and store system metrics, often paired with Grafana?
19. Name the command used to send signals to processes (e.g., to terminate them) (3 letters).
20. What two-word term refers to the amount of physical memory currently in use by processes? (first word starts with 'u')
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