Writing with ink,. if you don't hear an answer at all, or you would if you had more time to listen it is perfectly ok to tell your t that. It's not a 'right or wrong' thing. If you don't hear answers it can be because nobody wants to say anything, or they don't yet trust the t enough to share, or you are not yet coconscious with the ones who know the answers, or at that particular moment, nobody is home but you.

I *hated* the 'who are you?' question with a vengeance. truyl hated it. I think I used to switch to a part that growls every time my t asked it! It took me a long time but I did get up the courage to tell her that we didn't like that question and we would never answer that question and we wanted her to not ask it anymore (of course it didn't help that we also had parts that told t they DID like the question and would always answer if it was them!)
But, you know, if you don't like it and it makes you uncomfortable you can just ask your t not to ask that question. That's perfectly ok to do.