Very often the best answer would be like:
> Q: Do you use multi-tenant databases?
> A: N/A: you'll be deploying our product on your own server.
That's actually a perfectly fine answer! The person reading it doesn't have to explain large gaps in the answers to their boss. It documents why this isn't relevant in a way their successor can easily understand next year when they're reviewing those 100 vendors as part of their annual Vendor Management Policy™ process.