AT&T Systems Engineer interview questions

The hiring manager gave me a quiz testing my high-level problem solving skills in compression, queuing theory, and Wireshark packet captures. Then he graded my answers and based on my score determined whether or not to hire me. He briefly asked me about my resume.

Talked with 4 different people. They didn't ask me much, just general questions such as what did you do in college, describe what you did in this project, etc. They introduced me their co-workers (not interviewee) in between interview. The whole interview was in relaxed atmosphere and the work environment seemed nice. They like person who communicates well in a team so be sure to show them your energy and that you are smart, well rounded, and team oriented person. The interview lasted 2 hours, which in the end I was exhausted repeating same thing to 4 ppl...