The output of the show ip interface brief command indicates that Serial0 is up but the line protocol is down. What are two possible causes for the line protocol being in the down state? (Choose two.)
- The clock rate is not set on the DTE.
- An incorrect default gateway is set on the router.
- A network is missing from the routing protocol configuration.
- The encapsulation on the Serial0 interface is incorrect.
- Keepalives are not being sent by the remote device.
Exam with this question: CCNA (ICND2) Cert Practice Exam
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