Refer to the exhibit. What can be known about the configuration of router R1 from the output?

Refer to the exhibit. What can be known about the configuration of router R1 from the output?

• The Frame Relay LMI DLCI has been incorrectly configured as DLCI 1023.
• The Frame Relay LMI type has been changed from its default.
• The Serial 0/0/0 interface has been configured as a data communications equipment device.
• The command encapsulation frame-relay ietf has been used on the Serial 0/0/0 interface.

Exam with this question: CCNA Exploration 4: EWAN Chapter 3 Exam