Thanks, Koen! (EDIT: And Braindonor, who added a reply while I was typing)
I submitted this question quite a long time ago - and I found that I had to spend time to research some of the options again.
BTW, maybe it's a bit early to say anything about the percentages, but at this point I am mainly surprised at:
* 28% wrong answers on the "bitmap on computed" option - I expected this to be lower
* 17% wrong answers on the "nonclustered on a view" option - here, I expected a higher failure rate
The other percentages are (so far) about on par with my expectation.
Hugo Kornelis, SQL Server MVP
Visit my SQL Server blog: http://sqlblog.com/blogs/hugo_kornelis