Q:
When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?
Answer & Explanation
Answer: A) Supplied by the CSU/DSU
Explanation: Clocking on a serial interface is always provided by the CSU/DSU (DCE device). However, if you do not have a CSU/DSU in your non-production test environment, then you need to supply clocking with the clock rate command on the serial interface of the router with the DCE cable attached.
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