单选题In the MAC address 00: : :9f:eA. , what represents the Organizationally Unique Identifier (OUI)?（）A
:9f:eAB
00: : :9fC
9f:eAD
00: :
题目内容(请给出正确答案)
单选题
In the MAC address 00: : :9f:eA. , what represents the Organizationally Unique Identifier (OUI)?（）
