Which three describe the reasons large OSPF networks use a hierarchical design? (Choose Three)

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Which three describe the reasons large OSPF networks use a hierarchical design? (Choose Three)

  • to speed up convergence
  • to reduce routing overhead
  • to lower costs by replacing routers with distribution layer switches.
  • to decrease latency by increasing bandwidth.
  • to confine network instability to single areas of the network.
  • to reduce the complexity of router configuration.

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