Which statement about a bridge domain is true?
A. A bridge domain must be liked to one internal network and one external network
B. A bridge domain must be linked to a physical domain
C. A bridge domain typically has at least one subnet that Is associated with it
D. A bridge domain must have at least one external network that is associated with it
Bridge Domains:
“A BD must be linked to a VRF (also known as a context or private network). With the exception of a Layer 2 VLAN, it must have at least one subnet (fvSubnet) associated with it”
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/aci-fundamentals/b_ACI-Fundamentals/b_ACI-Fundamentals_chapter_010001.html#concept_8FDD3C7A35284B2E809136922D3EA02B