Final answer:
The statement is false because long polling happens when the WaitTimeSeconds parameter is set to a value greater than 0, not 0.
Step-by-step explanation:
The statement 'Long polling occurs when the WaitTimeSeconds parameter of a ReceiveMessage call is set to 0' is false. Long polling is a technique where the server holds a request open until new data is available to send to the client, which can reduce the number of requests made to the server. In the context of AWS services like Amazon Simple Queue Service (SQS), long polling is enabled when the WaitTimeSeconds parameter is set to a value greater than 0. If WaitTimeSeconds is set to 0, short polling is used instead, where the server will respond immediately, even if it has no messages to return.