What command is used to reset a MODEM when using the “AT Command Set”? A. ATR B. ATZ C. DTR D. DCE E. None of the above

ATR
ATZ
DTR
DCE E. None of the above

The correct answer is: ATZ

The AT command set is a standard set of commands used to control modems. The ATZ command is used to reset a modem. When the ATZ command is sent to a modem, the modem will reset itself and return to its default settings.

The ATR command is used to get the modem’s response. The DTR command is used to set or clear the Data Terminal Ready line. The DCE command is used to set or clear the Data Communications Equipment line.

None of the above options are used to reset a modem.