On what kinds of networks does OSPF elect a backup designated router?()
- A、Point-to-point and point-to-multipoint networks
- B、Nonbroadcast and broadcast multipoint multicasting
- C、Point-to-point and multi-access broadcasting
- D、Point-to-multipoint and multi-access broadcasting
- E、Nonbroadcast and broadcast multi-access
正确答案:E
答案解析:有
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