Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.) 

Answer options:

A. Connect Time Failover requires the use of Transparent Application Failover (TAF)
B. Source Routing requires the use of a name server
C. Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall
D. Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration
E. Load Balancing requires the use of a name server
F. Connect Time Failover requires the connect string to have two or more listener addresses configured

BCF

Reference: https://docs.oracle.com/cd/E11882_01/network.112/e41945/advcfg.htm#NETAG013