In the Cisco Nexus 7000 FabricPath domain, one switch becomes the root for the multidestination tree. Cisco FabricPath IS-IS will automatically select root switches for each multidestination tree. One of the parameters that is used to select the root is the system ID. Which two statements are true about the system ID? (Choose two.)
A. The system ID is a unique 12-bit value.
B. The system ID is a 48-bit value composed of the VDC MAC address.
C. A higher system ID is preferred.
D. A lower system ID is preferred.
