[Grammar] What did/have you study/studied at university?

[tom3m]

What did/have you study/studied at university?

Which tense would be more appropriate? Can we even tell without context?

I would say past simple would be correct but I'm not sure whether present perfect would be as well.
Thank you in advance

 

[konungursvia]

You need context. Both are possible, and mean slightly different things.