[amp_mcq option1=”ATZ” option2=”ATD” option3=”ATR” option4=”ATH E. None of the above” correct=”option4″]
The correct answer is: D. ATH
The AT command set is a standard set of commands used to control modems. The ATH command is used to hang up a modem.
The ATZ command is used to reset a modem. The ATD command is used to dial a phone number. The ATR command is used to get the modem’s response code.
None of the other options are correct.