多项选择题
A. GLBP and VRRP allow for MD5 authentication， whereas HSRP does not.
B. HSRP allows for multiple upstream active links being simultaneously used， whereas GLBP does not.
C. GLBP allows for router load balancing of traffic from a network segment without the different host IP configurations required to achieve the same results with HSRP.
D. Unlike HSRP and VRRP， GLBP allows automatic selection and simultaneous use of multiple available gateways.
E. GLBP allows for router load balancing of traffic from a network segment by utilizing the creation of multiple standby groups.
多项选择题 Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure. Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （）
单项选择题 You want to implement router redundancy in the Company network using the best method available. Which protocol specified by RFC 2281 provides network redundancy for IP networks， ensuring that user traffic immediately and transparently recovers from first-hop failures in network edge devices or access circuits？（）
单项选择题 pany uses GLBP to provide for router redundancy in the network. Which describes the default load balancing scheme used by the Gateway Load Balancing Protocol （GLBP）？（）