When answering in Jeopardy does it matter how you phrase a question? Could I say “is it….?” or “could it be…?” and still get it correct?

So for example. If the category is “US State Capitals” and the answer is “Idaho” could I then answer by saying “is it Boise?” and then receive credit? Because I know people would normally say “what is Boise?” As the answer but I’m curious if any question will do so long as it has the thing they’re looking for.