Which three statements about quiescing a RAC database are true? (Choose three.)
A.
It is possible to take a cold backup while the database is in a quiesced state.
B.
Use the ALTER SYSTEM QUIESCE RESTRICTED statement from a single instance.
C.
The database cannot be opened from another instance until the ALTER SYSTEM QUIESCE statement finishes execution.
D.
The ALTER SYSTEM QUIESCE RESTRICTED and ALTER SYSTEM UNQUIESCE statements affect all instances in a RAC environment.