“She didn’t know how basic stacks worked,” Sure, most programmers have at least heard of a stack, and some could tell you the name of an operation one might do

“She didn’t know how basic stacks worked,” Sure, most programmers have at least heard of a stack, and some could tell you the name of an operation one might do to a stack, and quite a few could at least tell you the name of an algorithm that did said operation, but stack-based programming is kind of a niche domain so that sounds more like the thing a non-programmer would say to impress other non-programmers.