Is there any way to find out what room you'll be in for test day, so as to see the kinds of distractions you'll be faced with? (I obviously know the test center, but I don't know how to find out the exact room)...
If you are obsessing over which precise room you'll be in, so as to determine which distractions you will face as distinct from the distractions in any other room at the same test center, you are on a fast train to test-day meltdown.
You need to lose the OCD, and prepare yourself mentally and emotionally to take the test under the most distracting conditions imaginable, and still
get an excellent score.
Practice in a noisy coffee shop, with espresso machines going off constantly, on a bus/subway etc., all kinds of conditions.
If you practice under only pristine conditions, you're bound to be severely disappointed on test day.