I went ahead and checked the db_ssisitduser as I felt (from general test-taking) that it was a typo and not a trick. But that kind of trickery is not cool, and most question writers do not intend such tiny obfuscations.

Obviously there is not much QA vetting by an alternate person before the questions are deployed.

As to the question writing challenge: is there a way to know the potential question has not been written before?

It seems there have in the past been extremely close variations, but I have not noticed any identical questions from 2007 forward... cannot speak to any prior to that. Maybe these questions are better in another area or forum of the site...