In the MAC address 00: : :9f:eA. , what represents the Organizationally Unique Identifier (OUI)?（）A、:9f:eAB、00: : :9fC、9f:eAD、00: :
题目
In the MAC address 00: : :9f:eA. , what represents the Organizationally Unique Identifier (OUI)?（）
- A、:9f:eA
- B、00: : :9f
- C、9f:eA
- D、00: :