An administrator wants to describe the internal architecture and request flow for a Query service of an executed DQM report.
How is this done?
A . A report specification is executed via BIBus which directly queries via RDBMS adapter, and caches then waits for the result and generates the report output.
B . A report specification is executed via Query service which directly queries via RDBMS adapter, and caches then waits for the result and generates the report output.
C . A report specification is executed via Query service which parses the request into two
trees and executes via RDBMS adapter and caches then waits for the result and generates the report output.
D . A report specification is executed via BIBus then to Query service which parses the request into two trees and executes via RDBMS adapter and caches then waits for the result and generates the report output.
Answer: B
Explanation:
The SQL engine obtains data directly from the RDBMS Adapter. The Query Execution Engine updates the secure Data Cache with dimensional data for future reuse.
Note: A report specification is an executable definition of a report, including query and layout rules, which can be combined with data to produce a report output.
References:
https://www.ibm.com/developerworks/data/library/cognos/infrastructure/cognos_specific/pa
ge529.html