Very simple, as the basic questions you would expect (anyone with minimal experience should be able to answer) and as long as you seem like a good culture fit they are mostly having you ask the questions versus them.
I applied through university. The process took 1 day. I interviewed at SAP (Newtown Square, PA) in Apr 2019
Interview
Very brief simple interview of the basics of networking for the intern role. Asked basic network knowledge and course work from Drexel, most had them ask me questions I had for them about how their team worked and their datacenter was setup. Very easy going!