[amp_mcq option1=”callback” option2=”error” option3=”connect” option4=”reconnect” correct=”option1″]
The correct answer is A. callback.
A callback is a function that is called when a certain event occurs. In the context of PubNub, a callback is a function that is called when a successful connection with the PubNub cloud is established.
The other options are incorrect because:
- B. error is a function that is called when an error occurs during a connection with the PubNub cloud.
- C. connect is a method that is used to establish a connection with the PubNub cloud.
- D. reconnect is a method that is used to reconnect to the PubNub cloud after a connection has been lost.