Under which two circumstances would warnings be issued to you?

When you are performing a backup, the Flash Recovery Area is low on free space. Under which two circumstances would warnings be issued to you? (Choose two.)

A.
When the used space is at 85%, a warning is issued.

B.
When the used space is at 90%, a warning is issued.

C.
When the used space is at 95%, a warning is issued.

D.
When the used space is at 95%, a critical warning is issued.

E.
When the used space is at 99%, a critical warning is issued.

F.
When the used space is at 97%, a critical warning is issued.

Explanation:
By default a server-generated alert is generated for tablespace space usage when the percentage of space usage exceeds either the 85%warning or 97% critical threshold level.
REF.: Oracle(r) 10g Administrator Guide, 4-19