Thank you for your good review. I left a reply on the Q&A board of the lecture below. https://www.inflearn.com/questions/1128750/ksqldb-cluster-%EC%97%AC%EB%B6%80-%EB%B0%95%EC%84%B1%EB%B2%94%EB%8B%98-%EC%A7%88%EB%AC%B8-%EC%A0%9C%EA%B0%80-%EB%8C%80%EC%8B%A0%ED%95%B4%EC%84%9C-%EC%A0%81%EC%8A%B5%EB%8B%88%EB%8B%A4

Thank you so much for kindly answering my questions. It was a great help. I will take the class again if you make a new one. Fighting!