Which of the following Frame-Relay encapsulation commands would you use, if you had to connect your Cisco router to a non-Cisco router?()
A、TestKRouter(config-if)# Encapsulation frame-relay dot1q
B、TestKRouter(config-if)# Encapsulation frame-relay aal5snap
C、TestKRouter(config-if)# Encapsulation frame-relay ietf
D、TestKRouter(config-if)# Encapsulation frame-relay isl
E、None of the above
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