Siemens Systems Engineer interview questions

I applied thru college. There were four rounds in total. First round had c++ questions. Second round had verbal, quant and technical. Then there was technical and HR interview. One could attend further rounds only on clearing previous rounds. I had been till HR round and I was not selected. Online tests happened on one day and interviews on the next day. Results were announced four days later.

spoke to manager briefly at a local career conference. Friendly conversation nothing scripted. He took my resume and called me exactly two weeks later. Upfront about opportunity, interview wasnt too structured just basically an honest assessment of whether or not I would fit in to the work environment.