[单选]
Three Cisco Catalyst switches have been configured with a first-hop redundancy protocol. While reviewing some show commands， debug output， and the syslog， you discover the following information：

What conclusion can you infer from this information？（）

A . VRRP is initializing and operating correctly.
B . HSRP is not properly exchanging three hello messages.
C . VRRP is not properly exchanging three hello messages.
D . HSRP is initializing and operating correctly.
E . GLBP is not properly exchanging three hello messages.
F . GLBP is initializing and operating correctly.

崇高为了容错，可以在另一台DNS服务器上建立某个主要区域的只读副本，这个副本被称为（）区域，里面的资源记录内容与主要区域中的资源记录内容完全相同。备份。辅助。活动目录集成。存根。（）的要义是贷款审批通过不等于放款。诚信申贷。协议承诺。贷放分控。实贷实付。猝死是指平素（）或貌似“健康”者因潜在性疾病或（）而突然出乎意料的非暴力死亡者。与Windows平台所搭配的服务器软件是

Three Cisco Catalyst switches have been configured with a first-hop redundancy protocol. While reviewing some show commands， debug output， and the syslog， you discover the following information：

What conclusion can you infer from this information？（）

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[单选] Three Cisco Catalyst switches have been configured with a first-hop redundancy protocol. While reviewing some show commands， debug output， and the syslog， you discover the following information： What conclusion can you infer from this information？（）

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[单选]
Three Cisco Catalyst switches have been configured with a first-hop redundancy protocol. While reviewing some show commands， debug output， and the syslog， you discover the following information：

What conclusion can you infer from this information？（）