单项选择题 What occurs on a Frame Relay network when the CIR is exceeded?（）

多项选择题 It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.Which of the following processes are required to accomplish this task?（）

单项选择题 which command allows you to verify the encapsulation type (CISCO OR IETF) for a frame relay link?（）