MX Query results?

What facilities exist for submitting queries to MX to check state?  The StageNow app can send "set" comands.  MobiControl has "mxconfig" to send exported XML MX from StageNow but I am looking for some way to determine when the Ethernet adapter is active.  The MX documentation shows:

<characteristic type="ComponentMgr">
<parm-query name="EthernetState"/>

but is there any way of getting the actual return value outside of an EMDK app?