When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?

LohaHridoy
  1. Supplied by the CSU/DSU
  2. By the far end router
  3. By the clock rate command
  4. By the Physical layer bit stream timing

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AhmedNazir

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Answer: Option 1

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 nonproduction 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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