Difference between Point to Point and Publish and Subscribe method

What is the difference between Point to Point and Publish and Subscribe method?

In point to point communication, the producers and consumers of the message are defined. The producers push the messages in the queues and the receivers pull them.

In publish and subscribe method, the producers publish the message and the subscribers who have subscribed to that topic receive them. In this way, a message may be received, or processed, by multiple consumers.
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