Broadcom interview questions

I applied online in May, and I got a response in June. Broadcom first scheduled a phone interview with me. During the phone interview, there is no coding or shared documents stuff, just talking. The interviewer asked about some main concepts of 802.11 protocol. After the phone interview, Broadcom scheduled an onsite interview with me. The onsite interview starts in the morning and end in the afternoon. I talked with many people, and each of them takes 45 mins. The result of the interview comes out a month later.