Discussion
In OLE DB, a service provider:
Answer: D
Correct answer: All of the above are true of an OLE DB service provider.
A service provider owns no data of its own. It sits between a consumer and a data provider, taking data in through an OLE DB interface, transforming it - sorting, querying, converting - and exposing the result through another. Being fed by one interface and exposing another makes it simultaneously a consumer and a provider, which is exactly what allows providers to be chained.
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