兆欧表的接线端子有L、E和G三个，当测量电气设备绝缘电阻时（）接地。
A. L端子
B. E端子
C. G端子
D. 不需
查看答案
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface
B. Configure each Frame Relay circuit as apoint-to-point line to support multicast and broadcast traffic
Configure many sub-interfaces on the same subnet
D. Configure a single sub-interface to establish multiple PVC connections to multiple remote router interface
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