Which one of the following is an application of Queue Data Structure?

1. A.

   When a resource is shared among multiple consumers.

   
   

2. B.

   When data is transferred asynchronously (data not necessarily received at same rate as sent) between two processes

   
   

   
   

3. C.

   Load Balancing

   
   

4. D.

   All of the above 

   
   

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