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Which statement best describes the function of Hot Standby Router Protocol (HSRP)?
Correct Answer: B
Explanation/Reference: Explanation: Hot Standby Router Protocol (HSRP) is specified by RFC 2281. The primary function of HSRP is to define a set of routers that work together to represent one virtual, fault-tolerant router. Thus, redundancy is provided in the event that any one of the routers fails. HSRP can be configured on the following interface types: Routed ports Switched virtual interfaces (SVI) Etherchannel port channels HSRP does use a single IP address to represent a group of routers, but this does not fully describe the function of HSRP. HSRP does not provide round-robin gateway selection. HSRP uses router priority to select a primary and standby router. HSRP does not define a frame-tagging scheme that allows end stations to use any router as a gateway. End stations use the virtual IP address of a group of HSRP routers as the default gateway. Objective: Infrastructure Services Sub-Objective: Configure and verify first-hop redundancy protocols References: Internetworking Case Studies > Using HSRP for Fault-Tolerant IP Routing Cisco > Cisco IOS IP Application Services Configuration Guide, Release 12.4 > Part 1: First Hop Redundancy Protocols > Configuring HSRP