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  3. A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redu

A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redu

admin2019-04-08  49
问题 A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network． What can be done to ensure that this switch assumes the role as root bridge?
选项 A、Establish a direct link from the switch to all other switches in the network．
B、Assign the switch a higher MAC address than the other switches in the network have．
C、Configure the switch so that it has a lower priority than other switches in the network．
D、Configure the switch for full-duplex operation and configure the other switches for half-duplex operation．
E、Connect the switch directly to the MDF router, which will force the switch to assume the role of root bridge．
答案C
解析 根桥的选举是通过比较Bridge-ID来实现的，而Bridge-id由桥优先级和MAC地址组成，越小越优先。因此想让哪台交换机成为根桥，修改他的优先级就行了。
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