In Asynchronous Interaction pattern
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The client sends a message to the service and the service is not required to reply
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A client sends a request to a service and receives an immediate reply
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A client sends a request to a service and there is no response
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A client sends a request to a service and waits until the service replies
In Asynchronous Interaction pattern, the client sends a request to a service and waits until the service replies. The key characteristic of asynchronous communication is that the client doesn't block immediately - it sends the request and continues, then receives the response later (often through a callback). Option A describes one-way messaging, Option B describes synchronous communication, and Option C is incorrect because there IS a response, just not immediate.