>>>> Isn't this true only if the system architect selects all the operators in the wizard?
NO!. This the entire purpose of the 'Test' functionality. Te wizard allows to select a set of opeartors for which you can TEST the changes. After changes are verified, you can Activate. The Activate will activate for all operators whoi have access to that application.
Regarding the other quiz question, I agree it was a little confusing spo I have change it to this:
I hope you can answer it. Change will be inproduction soon.