Meta Software Engineering interview questions

Interviewed at college campus career fair, then a week later got called onsite for an interview (I chose the Seattle office for the interview), and the next day got the offer. Both of the interviews were 1:1 with an engineer (first with a SWE, second with a manager) and they were both technical, but they asked a few questions about interests and what I wanted to work on at Facebook.

I was contacted by a recruiter and asked the normal job / career stuff. An interviewer callef back and asked a lot of simple Linux networking questions that were pretty much to filter out people who didn't know what they were talking about. The questions were things like what port number various services were on and what simple Unix commands did. I then had a call scheduled with an engineer to do a test using a shared writing space. It was a very annoying tool to use and I had a bit of trouble using it because I'm an emacs guy and this was a very different In Bowser editor. Anyway, the problem was to recursively copy a directory structure to a remote file system using an api. My reviewer and I went through the solution I made and we confirmed it worked. I think I must have answered some performance optimization questions incorrectly because I didn't get a call back. He also asked me how I would extend it and I think I gave the wrong answer.