[valicord]

Then don't ask this question if it's not relevant for your position? Presumably those who would ask it don't want to hire engineers that have never heard of recursion. It's a basic level CS concept, not rocket science.

[geraldwhen]

Out of 100 people I interview, maybe 1 would know what recursion even is.

[valicord]

Does the role you're hiring for require knowledge of recursion?

[gedy]

You need to talk/complain to your pipeline, sounds like the 20 something non-technical "recruiters" are wasting your time.