問答題

【簡(jiǎn)答題】什么協(xié)議可以使用虛擬IP和虛擬MAC ，在錯(cuò)誤發(fā)生的時(shí)候，避免連接的丟失。

答案： HSRP、VRRP、GLBP

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單項(xiàng)選擇題

Refer to the exhibit. Based on this configuration, what type of marker is achieved?（）

A.Single-rate，two-color marker
B.Three-rate，two-color marker
C.Two-rate，three-color marker
D.Single-rate，three-color marker

【簡(jiǎn)答題】On a multicast environment， what is process for installing and run an application on host？

答案： IGMP