I've been browsing this particular forum and haven't seen any references to IP subnetting questions being encountered on the actual "Beast".
Is it that people just don't get many questions of this nature or is that people answered them with confidence they didn't think anything of them?
Most users in this forum says the Beast

uses mostly DNS, DHCP, and WSUS type questions to take down the unwary test-taker. I'm better at these questions than subentting. I do understand subnetting, I'm just not a master of it.
I plan to take on the Beast in June to take advantage of the Longhorn upgrades available.