Correct Answer: D,E
Explanation/Reference:
D: Create the Broker Configuration
When using Cloud Control, the Add Standby Database wizard can either add an existing (Oracle RAC or non-Oracle RAC) standby database into the configuration or create a new (Oracle RAC or non-Oracle RAC) standby database and add it to the configuration.
E: An Oracle Data Guard configuration must be enabled to be managed or monitored by the broker.
Note: An Oracle Data Guard configuration consists of one primary database and a combination of standby databases and far sync instances that receive redo directly from the primary database. The Oracle Data Guard broker logically groups these primary and standby databases into a broker configuration that allows the broker to manage and monitor them together as an integrated unit.
Incorrect Answers:
B, C: When using DGMGRL, the primary database and a standby database must already exist.
References: https://docs.oracle.com/database/121/DGBKR/configure.htm