Qualcomm Hardware Engineer interview questions

I have been called for the interview after resume screening in Campus Career fair. I had two rounds of interview. First round is a software round, where I was tested in data structures like linked list, trees. There was a question on FSM design too. The Second round was a hardware round, where I was asked to draw synthesized hardware for a verilog program. Second question was to draw a timing diagram for a sequential circuit. Third question was to implement a 3 input nand gate using 2 to 1 mux.

Applied for job through online posting. Got a call after 2 years (I was very surprised). Had a quick phone interview after an e-mail exchange with a HR representative. After which they invited me over to San Diego. The interview was intense. There was one employee who came in with a severe back problem. And when I asked him, he mentioned that he was very stressed with the work.