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Which option accurately describes the OSPF Graceful Restart feature in Cisco NX-OS?
Correct Answer: D
A graceful restart, or nonstop forwarding (NSF), allows OSPFv2 to remain in the data forwarding path through a process restart. When OSPFv2 needs to perform a graceful restart, it sends a link-local opaque (type 9) LSA, called a grace LSA http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/4_2/nx- os/unicast/configuration/guide/l3_cli_nxos/l3_ospf.html#52215