A、A.without switches on it
B、B.with insulated switches and no exposed terminals
C、C.without circuit breakers
D、D.without safety hand nails nor rubber mats
更多“A “dead front” switchboard is one （）.”相关的问题
A、由于本征VLAN不是默认VLAN，DTP将无法协商中继链路。 B、除非相连的远程接口也配置为动态期望模式，否则该接口无法协商中继链路 C、相连的设备会动态确定必须通过该链路传输多个VLAN的数据的时机并根据需要打开中继链路。 D、如果使用switchportmode dynamic auto命令或switc hportmode trunk命令配置远程相连设备，则会形成中继链路
A、A.禁用DTP B、B.删除当前通过端口Fa0/1中继的所有VLAN C、C.关闭该接口，然后重新启用，使其恢复默认配置 D、D.在接口配置模式下输入switc hport mode access命令
A、 mls qos cos 2 override B、 switchport priority extend cos 11 C、 switchport priority extend trust D、 switchport priority extend none E、 mls qos cos 2 F、 switchport priority extend cos 2
A、The network administrator can apply port security to dynamic access ports B、The network administrator can configure static secure or sticky secure mac addresses in the voice vlan. C、The sticky learning feature allows the addition of dynamically learned addresses to the runningconfiguration. D、The network administrator can apply port security to EtherChannels. E、When dynamic mac address learning is enabled on an interface，the switch can learn new addresses，up to the maximum defined.
["The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.","The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.","The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.","The root port is the switch port on every nonroot bridge that is the chosen path to the
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