You started up your database In the NOARCHIVELOG mode. Which are the two implications of
this setting? (Choose two.)
A.
The database can be backed up only while it is closed.
B.
The database can becompletely recovered from Instance failure
C.
The database can be backed up when the database instance is running.
D.
The database can be completely recovered from disk failure even after a log switch has
happened and online redo logs are overwritten.
Explanation:
Answer A & B is correct.
In noarchivemode backup of a running instance is of no use