It's a little awkward, but not so bad if it's within basics, like linked lists - which one may be rusty on but will generally know or re-derive - rather than really specific algorithms. But that's just a starting point, then it's about the interview and the communication and the interaction - exactly like the examples above of talking to real users or colleagues.

I have to ask. What roles were you in? and what languages did you develop in?

I was working on LLVM (C++ compiler) for 3 years and Java server backends the other 3 years. Those were the main products, with a side of Python, Groovy, Bash and JavaScript. In all fairness, I suspect LLVM uses linked lists internally for things like instructions in a basic block, but that was a level of abstraction under me.

Me?

the poster who said he never had to use a linkedlist in 6 years.

Ah, I see. I guess it all depends on the meaning of "use",