An IP address has been assigned to the S0/0/0 interface of a new Cisco router. The administrator wishes to quickly test basic connectivity with the serial interface of an adjoining Cisco router via the use of the default WAN protocol. Which WAN protocol will be used for this test?
- PPP
- Frame Relay
- DSL
- HDLC
- ATM
Exam with this question: CCNA Discovery 4: DCompNtwk Chapter 8 Exam
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