An engineer must advertise a bridge domain subnet out of the ACI fabric to an OSPF neighbor. Which two configuration steps are required? (Choose two.)

Configuring the subnet scope to "Advertised Externally" is essential because it explicitly marks the subnet as eligible for advertisement outside the ACI fabric via an L3Out. Without this scope, the subnet remains internal to the fabric and will not be redistributed.

The "External Subnet for External EPG" flag is used to define subnets that belong to an external EPG (e.g., for classifying external endpoints), not for advertising internal bridge domain subnets.

A Route Control Profile is used for manipulating routes (filtering, tagging, setting metric) that are being imported or exported, but it does not, by itself, enable the initial advertisement of a bridge domain subnet.

Associating the L3Out profile with the bridge domain through the "Associated L3Outs" section tells the ACI fabric which external routing instance is responsible for advertising the subnets configured within that bridge domain. This linkage is crucial for the L3Out to pick up and redistribute the specified subnet.

Configuring the subnet under the EPG level is incorrect; subnets are typically defined under a Bridge Domain in ACI, which then an EPG is associated with.