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思科认证考试

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Distribution layer: This layer includes LAN-based routers and layer 3 switches . When is a first-hop redundancy protocol needed in the distribution layer?()

  • A、OSPF is not supported by the design
  • B、HSRP is not supported by the design
  • C、preempt tuning of the default gateway is needed
  • D、the design implements Layer 3 between the access switch and the distribution switch
正确答案:D
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