A.spanning-tree mode rapid-pvst B.spanning-tree uplinkfast C.spanning-tree backbonefast D.spanning-tree mode mst
A.113.10.4.0 B.186.54.3.0 C.175.33.3.255 D.26.35.2.255 E.17.35.36.0
A.RARP request B.Show Network Address request C.Proxy ARP request D.ARP request E.Show Hardware Address request