Multiple choice

When must a router serial interface be configured with the clock rate command?

  1. When the interface is functioning as a DTE device.

  2. When the interface timers have been cleared.

  3. When the connected DTE device is shut down.

  4. When the interface is functioning as a DCE device.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The clock rate command is required on a serial interface when it is functioning as a DCE (Data Communications Equipment). The DCE device provides the clocking signal for synchronous serial communication. DTE (Data Terminal Equipment) devices receive clocking from the DCE and do not need the clock rate command.

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