In my youth (which was like...1 or 2 years ago) I used the far more naive "I'm not sure" or "I don't know" instead of "I'd Google it", and responded to the follow-up "So how would you find out?" question with some vague account of my research method (which included Google).

It turns out that a lot of problems require far more specific researching skills, say, if you're writing code to automate some type of proprietary system that Google knows nothing about. How do I automate a functional test? I talk to the people who run the test manually. How do I learn how to do this and that with a given box? I talk to the engineers who designed it.

"I'd google it" is the wrong, right answer. It's the right answer because you should have some ability to research things you don't know. It's wrong because there's no way Google will teach you what you need to know. Sometimes you need to read a book or make an appointment with an engineer in the other building, or run controlled experiments.