After modifying the router ID on an OSPF router, what is the preferred method to make the new router ID effective?

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After modifying the router ID on an OSPF router, what is the preferred method to make the new router ID effective?

  • HQ# copy running-config startup-config
  • HQ# resume
  • HQ# clear ip route *
  • HQ# clear ip ospf process

Explanation: To modify a router-id on an OSPF-enabled router, it is necessary to reset the OSPF routing process by entering either the clear ip ospf process command or the reload command.

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