单选题You need to configure two Company routers for high availability. Which protocol enables a group of routers to form a single virtual router and use the real IP address of a router as the gateway address？ （）A HSRPB IRDPC Proxy ARPD GLBPE VRRPF None of the other alternatives apply
单选题
You need to configure two Company routers for high availability. Which protocol enables a group of routers to form a single virtual router and use the real IP address of a router as the gateway address？ （）
A
HSRP
B
IRDP
C
Proxy ARP
D
GLBP
E
VRRP
F
None of the other alternatives apply
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