How to deal with a professor that continuously dismisses student questions? I'm taking a distributed systems course at a well known university in the U.S.

I've noticed my professor has three primary forms of responding to student questions during his lecture:


Immediately answers with, just a minute, we're going to cover that
Immediately answers with, that's what we just covered
Spends a couple sentences briefly explaining why the student's question doesn't apply / doesn't work


Almost no dialog is ever spent on further explanation, but rather on disproving. So, instead of recognizing student questions as a lack of understanding, it seems to come off as defending what he already covered and moving on.

As a student in this course, how best do I approach this?
I fear this may be just a personality trait / teaching style that he's acquired, and I wouldn't want to offend him with "Your responses to questions are unhelpful." — But maybe this is the best option?
It may be time to become more assertive in this person's class.


If he immediately answers with, just a minute, we're going to cover that, then you can speak up 5 minutes before class ends, or at the beginning of the following class, for example: "Excuse me, Prof. So-and-So, you mentioned you were going to be covering Topic B.  Since we didn't get to that today/last time, could you please start with that leftover question from last time?
If he immediately answers with, that's what we just covered, follow up immediately, for example, "Could you please clarify how the material you just covered answers my specific question? ... I'm sorry, sir, I don't see how that was relevant to my question." 
If he spends a couple sentences briefly explaining why your question doesn't apply / doesn't work, then you can try something like this: "You feel I asked a stupid question.  Nevertheless, I asked because I would honestly like an answer.  Can you help me formulate the question in an acceptable format?" 


Meeting one on one with certain professors sometimes gets one nowhere, unfortunately.  Still, you could try visiting office hours to find out more about what he's like.