单项选择题

What level of logging is enabled on a Router where the following logs are seen？（）

A.alerts
B.critical
C.errors
D.notifications

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单项选择题

The following commands are issued on a Cisco Router：

What will the debug output on the console show？（）

A.All IP packets passing through the router
B.Only IP packets with the source address of 10.1.1.1
C.All IP packets from 10.1.1.1 to 172.16.1.1
D.All IP Packets between 10.1.1.1 and 172.16.1.1

问答题

what will happen if u configure two router as NTP server （something like that）.

问答题

The interface is up and protocol is up. When do u get these messages.