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1. [单选题]The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?
A. Assign the switch a higher MAC address than the other switches in the network have
B. Establish a direct link from the switch to all other switches in the network
C. Configure the switch full-duplex operation and configure the other switches for half-duplex operation
D. Configure the switch so that it has lower priority than other switches in the network
E. None of the above
2. [单选题]帧中继环境中，CIR的含义是（）
A. 提高线路速率
B. 保证线路速率
C. 降低线路速率
D. 配置线路速率
