Meraki Software Engineer(Internship) interview questions

Had a phone interview with one of the engineers. It was a terrible experience. His line kept going off, and I coudn't hear him half the time. The interview started with the interviewer very briefly explaining the company, and then we directly proceeded to the algo question without any questions about my resume (since they were "short on time"). The question was immensely unclear and quite hard, and was just thrown to me. Moreover, the bad line on his side did not help. I tried clearing up the question with the interviewer, but that did not help as he did not really clear it up, rather made it more confusing. Also, his low level of enthusiasm did not give me a good impression about the company.