This web page has a fairly complete and accurate transcript of what's in the video. I watched it so you don't have to.
http://capitolcityproject.com/hillary-struggles-list-accomplishments-secretary-state-tenure/She really does not mention anything she actually did as Secretary of State. I've looked to see if there's longer video of the interview, to see if she came up with something, but I haven't found one.
Any politician with any kind of tradecraft should be able to come up with at least a few plausible answers to such an obvious question. Let's all remember she's never won but two elections, and those were in New York. She lost her first and only bid for power on the national stage (2008), and from this spectacular fail, it would seem she still doesn't have the chops to win a serious contest.
Of course, on this side of the looking glass, all bets are off.