How many pre-defined service names are configured in tnsnames.ora for a single Autonomous
Transaction Processing database instance, and what are they called?
A. Five. They are called tpurgent, tp, high, medium and low.
B. Three. They are called high, medium and low.
C. None. There are no pre-defined service names in tnsnames.ora.
D. Two. They are called ATP and ADW.
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