Nope, just probed a little to know what particular thing means, why would you even consider implementing such a pattern, an example scenario where you would need ,let's say decorator for example. Also they don't expect you to code every single one you can very frankly tell i've had no experience working with "asked" pattern, and ask courteously - can you tell me what this pattern does(shows your curiosity in subject).
I wasn't asked to code any design pattern, i would have if it was any one of the one i already implemented, but i guess they wont ask you to code what you know, focus is basically on fundamentals with data structures and algorithms. Oh they do ask design a system in which they'll automatically see ur OOP & OOD skills.
I'll post more, if i make it through to next round. *touchwood*