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
单选题
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: :