单选题A network administrator needs to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface for this connection?（）ARouter(config-if)# encapsulation frame-relay q933aBRouter(config-if)# encapsulation frame-relay ansiCRouter(config-if)# encapsulation frame-relay ietfDRouter(config-if)# encapsulation frame-relay islENone of the above
单选题
A network administrator needs to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface for this connection?（）
A
Router(config-if)# encapsulation frame-relay q933a
B
Router(config-if)# encapsulation frame-relay ansi
C
Router(config-if)# encapsulation frame-relay ietf
D
Router(config-if)# encapsulation frame-relay isl
E
None of the above
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