Question About Xbox 360 Warranty?

So the xbox 360 comes with a three year warranty, is that warranty only good for one repair such as I get the RROD and then they fix it, ship it back to me then a few months later it RROD again would they take it back again and again and again untill the three year is up or is it a one time deal?

Suggestion:

It's covered for the entire 3 years no matter how many times you get rrod. However once it's repaired it's unlikely that you will get it again.