Which two attributes need to match for two switches to become members of the same MST
region? (Choose two.)

A.
The table of 4096 elements that map the respective VLAN to STP instance number

B.
VTP version

C.
Configuration revision number

D.
Native VLAN ID

Explanation:
The final implementation adopted by the IEEE 802.1s standard made this mechanics more elegant
and simple. Before we process with discussing IEEE’s implementation, let’s define MSTP
region as a collection of switches, sharing the same view of physical topology partitioning into set
of logical topologies. For two switches to become members of the same region, the following
attributes must match: