Networking works best if you know someone who can recommend you. It will be easier as big companies receive lots of resumes.
In my case, my company was acquired by IBM, so we became part of IBM.
I didn't see any such situation where any question was difficult or unexpected.
The following metrics were computed from 2 interview experiences for the IBM Software Development Manager role in United States.
IBM's interview process for their Software Development Manager roles in the United States is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for IBM's Software Development Manager interview process in United States.