IBM C2090-614 Exam Practice Questions (P. 1)
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Question #1
- ACheck constraints
- BDefault constraints
- CInformational constraints
- DReferential integrity constraints
C

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Question #2

A Explain plan shows that a broadcast join is being used by a query that joins the DATE_DIM dimension table and the SALES fact table. Which action should be performed to improve query performance?
- ACreate a replicated summary table for the SALES table using the table space TS_REPL.
- BCreate a replicated summary table for the DATE_DIM table using the table space TS_REPL.
- CCreate an index on both the DATE_DIM and the SALES table for the column that is used in the collocated join.
- DCreate a replicated summary table for the SALES table using the table space TS_DIM and create an index on the DATE_DIM table.
B

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Question #3
- AEXPLAIN_FROM_DATA
- BEXPLAIN_FROM_ACTIVITY
- CEXPLAIN_FROM_SECTION
- DEXPLAIN_FROM_CATALOG
C

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Question #4
- AFor list prefetching, each list of data pages is divided into smaller lists according to extent boundaries and assigned to different I/O servers.
- BFor read-ahead prefetching, each list of data pages is divided into smaller lists according to extent boundaries and assigned to different I/O servers.
- CFor sequential prefetching, parallel I/O is initiated when the prefetch size is a multiple of the extent size for a table space. Each prefetch request is divided into smaller requests and assigned to different I/O servers.
- DFor sequential prefetching, parallel I/O is initiated when the extent size is a multiple of the prefetch size for a table space. Each prefetch request is divided into
C

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Question #5
MESSAGE:
ADM5502W -
The escalation of "28581" locks on table "TEST.TABLE1" to lock intent "X" was successful.
Which two database configuration parameter settings should be checked? (Choose two.)

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