The messageChannel class declares the _________ class attribute that defines the key string.(a) command_key(b) command-key(c) commandkey(d) Key_commandI have been asked this question in a national level competition.I would like to ask this question from Sending and Receiving Data in Real Time Through Internet topic in chapter Working with the Cloud of IOT

The messageChannel class declares the _________ class attribute that d

1.	The messageChannel class declares the _________ class attribute that defines the key string.(a) command_key(b) command-key(c) commandkey(d) Key_commandI have been asked this question in a national level competition.I would like to ask this question from Sending and Receiving Data in Real Time Through Internet topic in chapter Working with the Cloud of IOT
Answer» Right OPTION is (a) command_key Explanation: The messageChannel CLASS declares the command_key class ATTRIBUTE that defines the KEY string that defines what the code will understand as the command.

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