It may be because I haven't had my coffee yet, but how would using OR help here? 1 OR 0 OR 0 returns 1, but the host was offline in 2 of the past 3 months, which means that it should be 0...
This sort of ambiguity is why BDUF is so hard to pull off. Only lawyers are trained to write completely unambiguous prose (and they fall back to having very precise meanings for words to help them succeed).