试题详情
- 单项选择题How is RPF used in multicast routing？（）
A、to prevent multicast packets from looping
B、to prevent PIM packets from looping
C、to instruct PIM where to send a （*， G） or （S， G） join message
D、to prevent multicast packets from looping and to instruct PIM where to send a （*， G） or （S， G） joinmessage
- D
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