Hot Topic ?
After a recent challenge by a Mandarin Speaking FA about this it has become a hot topic in the office.
Make a PA All announcement and it is heard very loud and clear in the tech crew rest.
On the A330 it is either PA All or PA 2.Dont know about any PA1.
For me if the Capt says PA2 then PA2 it is.
Then again commonsense and company policy tend to be diametrically opposed.
Good luck with your interview.
Go upstairs and make an appointment to see the Chief Pilot.He will definitely be able to provide clarification