After upgrading to DOT 8.07-mode, you can convert existing 32-bit aggregates into 64-bit aggregates.

A.
True

B.
False

Explanation:
http://www.ntapgeek.com/2011/12/how-in-place-expansion-works.html
To upgrade an aggregate in-place, the only available method is to add disks to expand the aggregate to >16TB.
There is an obscure method using diag mode but that is not supported or mentioned in the exam content. The
answer is always add disks to grow past 16TB, or migrate.