Which nonproprietary protocol provides router redundancy for a group of routers which support IPv4 LANs?

Which nonproprietary protocol provides router redundancy for a group of routers which support IPv4 LANs?

• HSRP
• VRRPv2
• GLBP
• SLB

Explanation: The only nonproprietary FHRP used for router redundancy listed in the options is VRRPv2. HSRP and GLBP are both Cisco proprietary FHRPs. IOS SLB is a Cisco-based solution used to load balance traffic across multiple servers.

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