Þ A AND D. DISPATCHERS MAINTAIN THE CONNECTION TO USER PROCESSES,...

10. þ A and D. Dispatchers maintain the connection to user processes, place

requests on the common queue, and retrieve result sets from response queues.

ý B, C, and E. B is wrong because each dispatcher has its own response

queue. C is wrong because it is the listener that load-balances, not the

dispatchers. E is wrong because the connections to a dispatcher are persistent:

if it dies, they will be broken.