Messaging Size:
In terms of messaging size, Windows Azure Queues allow messages up to a maximum size of 64 KB, while Windows Azure Service Bus Queues support larger message sizes up to 256 KB. This means that Service Bus Queues offer greater flexibility for handling larger message payloads.
Messaging Model:
Windows Azure Queues follow a simple point-to-point messaging model. They are designed for asynchronous communication, where a sender enqueues a message that is later retrieved and processed by a single receiver. On the other hand, Windows Azure Service Bus Queues support both point-to-point and publish-subscribe messaging models. They allow multiple subscribers to receive and process messages, enabling more complex messaging scenarios.
Protocol Supported:
Windows Azure Queues primarily support the REST protocol, which allows applications to communicate with the queues using HTTP/HTTPS requests. On the other hand, Windows Azure Service Bus Queues support additional protocols, including Advanced Message Queuing Protocol (AMQP) and Message Queuing Telemetry Transport (MQTT). This broader protocol support offers developers more flexibility and choice when integrating with the queues.
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