Interviewers really appreciate honesty and if they don't it's a flag. My last interview for the current role I am in, I was confident as I knew I could do what

Interviewers really appreciate honesty and if they don't it's a flag. My last interview for the current role I am in, I was confident as I knew I could do what they expected of me. They asked me if I knew a certain automation deployment tool, I just replied nope and that was it, no follow up 'I am sure I could learn it blah, blah blah'. The interviewer just made a kind, sure, OK shrug and I was offered the role a week later.