Which of these repository types can NOT be an extent of the scale-out repository? (Choose two.)

A.
Another scale-out repository

B.
A cloud repository

C.
A CIFS share

D.
A deduplicating storage appliance

E.
A Windows server

F.
A Linux server

Explanation:
https://www.veeam.com/blog/ultimate-faq-for-scale-out-backup-repository.html