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You need to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface of the router for this connection?

Router (config-if) #encapsulation frame-relay q933a
Router (config - if) #encapsulation frame-relay ansi
Router (config - if) #encapsulation frame-relay ietf
Router (config - if) #encapsulation frame-relay cisco

Correct Answer: Router (config - if) #encapsulation frame-relay ietf

Explanation:

If you have a Cisco router on one side of a Frame Relay network and a non-Cisco router on the otherside, you would need to use the Frame Relay encapsulation type of IETF. The default is Cisco encapsulation, which means that a Cisco router must be on both sides of the Frame Relay PVC.

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