多选题
发布日期:2020-04-11
to verify the type of cable interconnecting two devices
to determine the status of network services on a remote device
to obtain VLAN information from directly connected switches
to verify Layer 2 connectivity between two devices when Layer 3 fails
to obtain the IP address of a connected device in order to telnet to the device
to determine the status of the routing protocols between directly connected routers
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