Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?

Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?

• Replace the serial cable.
• Replace the WIC on RA.
• Configure RA with a clock rate command.
• Issue a no shutdown interface command on RB.

Exam with this question: CCNA Exploration 4: EWAN Practice Final Exam