Will the data collector discover and collect IP address x.x.x.0 and x.x.x.255?

No, the data collector does not discover or collect x.x.x.0 and x.x.x.255 addresses as they are reserved as broadcast addresses.

It is not recommended to use a .0 and .255 address according to the RFC's.

See the article from Microsoft here.

https://mskb.pkisolutions.com/kb/281579