Question { IBM, 8180 }

Advantage of central instance on application server

Answer

Central instance on application server contains all seven
process(DVEBMGS) where in dialog process has 5 process we
didn't have Message Server and Enqueue sever.
Message server identifies the least loaded dispatcher.
Enqueue server is used to keep lock on the particular record
while updating the record in database

Question { Logica CMG, 9453 }

where will you first see if there is a performance problem....

Answer

Performance time is mainly based on Dispatcher Waiting time
to serve the user request in the queue based on FIFO.
Dispatcher handles the user request to user context are for
roll in time and roll out time from the database to fetch
the user information