You are asked to justify your proposed Maximum Availability Architecture to the IT director who
feels that a four-node RAC cluster on the primary should not require a four-node RAC cluster for a
physical standby database. The director suggests that either a non-RAC database should be used
on the standby or that at most a two-node cluster is all that is required. Your proposed architecture
was designed for both planned and unplanned downtime and for performance and scalability of
services for all eventualities. How would you justify your proposal? (Choose two.)
A.
A non-RAC physical standby would not provide for high availability in the case of a lights out
failover to the standby.
B.
Asymmetric configurations prevent the standby from issuing a FLASHBACK DATABASE
command if required after a failover.
C.
The four-node physical standby database provides for continuous availability of services but the
two-node RAC physical standby database does not.
D.
The four-node physical standby provides for the same service preferences and performance
profile in case of a failover to the physical standby database.
E.
A two-node physical standby would not allow as many services to be supported as a four-node
physical standby does in case of a failover to the physical standby.