Cvent Software Engineer-II interview questions

Total 3 rounds. I could only go till 2nd round. Note: This was for Ruby on Rails, I was around 2 years experienced. My First round was good, it was more about my what I added in my introduction. The interviewer was a good person, he corrected me with some of my explanations. I was driving this interview, that's how any interview should be. 2nd Round was not good, it was with a senior person experienced in rails, he did not have any interest with the experience I had, he started asking about VS code file search algorithm, but his expectations was "Elasticsearch", what a dumb! there's difference between algorithm vs integrating tool/library. And Also asked some SQL queries.