PagerDuty Mobile Software Developer interview questions

I applied online and I received an online interview invitation by email. On the day of the online interview the recruiter asked some questions about what PagerDuty would be and what I would do in that company. Then I had a challenge online, around 30 to 40 minutes, in which I could choose any language to solve the challenge. In some moments of the challenge I thought the recruiter rather rude with comments like: Do you know such a thing of language? Then use or try to use. In the end there was a space for me to ask the recruiter questions and the interview was finished.