After deliberating between Prometheus and zabbix, I heard that zabbix is sufficient for 5~100 or less, and that Prometheus has higher complexity in adding features and management aspects, so I chose zabbix and took this course. Through practicing the basic usage methods, I was able to get a good sense of how to set up and use monitoring. I hope that intermediate/advanced configuration and monitoring methods that are actually required in practice, such as HA, distribution, docker, and services, will be added and reinforced to the course, making it a recommended Korean online course. Thank you so much for sincerely answering many questions in an easy-to-understand way. I look forward to more great courses in the future.