单选题A network administrator is using a LAN analyzer to troubleshoot OSPF router exchange messages sent to ALLOSPF ROUTERS. To what MAC address are these messages sent？（）A 00-00-1C-EF-00-00B 01-00-5E-00-00-05C 01-00-5E-EF-00-00D EF-FF-FF-00-00-05E EF-00-00-FF-FF-FFF FF-FF-FF-FF-FF-FF
单选题
A network administrator is using a LAN analyzer to troubleshoot OSPF router exchange messages sent to ALLOSPF ROUTERS. To what MAC address are these messages sent？（）
A
00-00-1C-EF-00-00
B
01-00-5E-00-00-05
C
01-00-5E-EF-00-00
D
EF-FF-FF-00-00-05
E
EF-00-00-FF-FF-FF
F
FF-FF-FF-FF-FF-FF
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