Intel Corporation interview questions

First submitted my resume to a recruiter in the job fair. Got a call from a hiring manager after 3-4 weeks. Scheduled for a phone interview or better to say screening. The interview was mainly focused on some general question about my research. I got the feeling, the manager hardly follows what I am explaining. I stopped a number of time to make sure the manager understood what I am explaining. There were not any challenging technical question. One of managers asked me about my approach for a problem solving. I gave a relevant example to the job background. They some other behavioral questions. Finally asked for questions. I asked three questions and manager had hard time to answer any of them. After a week received an email about they are not considering me anymore.

It was just one round of technical interview. Most of the questions were related to my projects at school