Qualcomm interview questions

Applied online, got an email from Interview co-ordinator for possible dates for ph screen.Had ph screen with hiring manager, asked tech question. Then called for in person interview... Interview took a whole day with 7 diff people. WIth in 2 days got an email for a 2nd round of interview since upper management wanted to meet me.. It consisted of 3 directors.Then in 4-5 days HR called with offer..Have patience QC takes long time to set up the inter person interview... waited 2 -3 weeks for the first in person and the second interview took another 2 weeks to set up. By then I already got another offer from a different company.But liked the people and the culture there..

I was asked a lot of low level questions in C on memory allocation concepts, Scheduling, etc. Some of the questions were pretty low level. I wasn't prepared for such low level questions ( compilers, memory segments, blah blah).