שאלה | Which of the following statements is correct about the AMQP protocol?

Which of the following statements is correct about the AMQP protocol?

		In a "Direct Exchange" broker, the broker duplicates the received message. Afterwards, it examines the binding key of the message, and sends it to all queues connected to it ( the broker ) with the same binding key
		In a "Fanout" broker, the broker sends to all queues connected to id a pointer to the received message ( "By Reference" )
		In a "Fanout" broker, the broker sends to all queues connected to id a copy of the received message ( "By Value" )
		When a "Direct Exchange" broker receives a message with a binding key that does not exist in any queue connected to it, the message is saved at the broker in a Heap data - structure, and will be sent to its destination when a relevant queue will connect to the system