You are designing a Windows Azure application.
The application includes two web roles and three instances of a worker role. The web roles will send requests to the worker role through one or more Windows Azure Queues.
You have the following requirements:
Ensure that each request is processed exactly one time.
Minimize the idle time of each worker role instance.
Maximize the reliability of request processing.
You need to recommend a queue design for sending requests to the worker role.
What should you recommend?
A.
Create a single queue. Send requests on the single queue.
B.
Create a queue for each web role. Send requests on all queues at the same time.
C.
Create a queue for each worker role instance. Send requests on each worker queue in a round robin.
D.
Create a queue for each combination of web roles and worker role instances. Send requests to all worker
role instances based on the sending web role.