Toprotectagainstfirst－hoprouterfailure,fourprotocolsweredevelopedtoensureIProutingredundancy.Whichofthefollowingarethey?()A.HSRPB.IRDPC.ICMPD.VRRPE.MSTPF.GLBP
题目
Toprotectagainstfirst－hoprouterfailure,fourprotocolsweredevelopedtoensureIProutingredundancy.Whichofthefollowingarethey?()
A.HSRP
B.IRDP
C.ICMP
D.VRRP
E.MSTP
F.GLBP