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Which circle indicates the communication that will be traced?

Refer to the exhibits.
An application developer has enabled remote procedure call (RPC) tracing in the …\WEBINF\classes\dfc.properties file, in order to assist in identifying poorly performing queries in a
TaskSpace application.
Exhibit A

Exhibit B

Exhibit C

Exhibit D

Which circle indicates the communication that will be traced?

What is a likely cause of the performance problem?

An application developer has generated a remote procedure call (RPC) trace file for a high level
operation executed in TaskSpace that is performing poorly. A profile of the trace indicates the
following:
****** TRACE_RPC_HIST (D6 VERSION) ****
DURATION (secs): 15.781
TIME SPENT EXECUTING RPCs (secs): 13.620 (which is 86.31 percent of total time)
Threads: 2
Connections: 1
What is a likely cause of the performance problem?