单项选择题
Which multicast address does RIPv2 use for route updates by default?（）
A.224.0.0.2
B.224.0.0.5
C.224.0.0.9
D.255.255.255.255
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单项选择题
A.224.0.0.2
B.224.0.0.5
C.224.0.0.9
D.255.255.255.255
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