When an Oracle VM server starts, by default how does it map physical NICs to...

Each physical NIC is mapped to one or more virtual networks, each of which is assigned a Xen bridge.

One Xen bridge will be created for each physical NIC.

All physical NICs are mapped to a single Xen bridge.

No mapping of physical NICs to Xen bridges is done by default.

The first physicalNIC is assigned to dom0's management; a Xen bridge is then created for each of the remaining cards.