Which two statements are true about clients using this …

Examine this tnsnames entry from a RAC configuration using a SCAN listener:
HR=(DESCRIPTION=
(LOAD_BALANCE =on)
(ADDRESS=(PROTOCOL=TCP)(HOST=cluster01-scan)(FORT=1521))
(CONNECT_DATA=(SERVICE_NAME=HRSRV)))
Which two statements are true about clients using this entry to connect? (Choose two.)

A.
The host name in the tnsnames entry must be changed if nodes are added or removed from the Cluster.

B.
Clients using EZConnect can benefit from connect time load balancing because the tnsnames entry refers
to a SCAN listener.

C.
Client connection requests are automatically balanced across all IP addresses defined for the SCAN.

D.
A client connection request is received by a SCAN listener that creates the connection to the least-loaded
database instance.

E.
Client connection requests are automatically failed over to another SCAN listener if the chosen SCAN
listener is not available.