sknox (8/6/2012)
Hugo, I can see why you didn't want the "choose 3" text there -- for many of us it takes a question with 31 possible answers (2^5 -1 since I believe choosing 0 answers is not an option in this system down to a choice of 3 (if you got the non-unique clustered index) or 6 (if you weren't sure of the non-unique clustered index.)
I prefer not to think of it as a single question with 31 possible answers, but as six simple yes/no questions (with the additional information that at least two of them need to have a "yes" answer).
((And for the pedantic among us, it's actually 57 possible answers (2^6 - 1 - 6) as I did provide the note about "multiple answers" being correct - so all six options with only one tick can be discarded, as can the option with no correct answer. And for the record, the QotD software forces the author to mark at least one answer as correct, and will automatically present the answer options as either radio buttons or tick marks depending on the number of correct options.))
m mcdonald (8/6/2012)
http://msdn.microsoft.com/en-us/library/ms175049.aspx%5B/quote%5D
I deliberately didn't include that link, as I think the information is presented there in a very confusing way. This has already resulted in two highly controversial QotD's. (One of them in fact was my inspiration for this question).