IBM
C2090-312 · Question #54
C2090-312 Question #54: Real Exam Question with Answer & Explanation
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Question
The performance of BP5 is being evaluated. The Page residency time is being used to see if VPSIZE should be changed. The statistics that are available are VPSIZE of 90,000 and VPSEQT of 15 %. There are 4458 synch I/O per second and 1696 async I/O per second. 6154 total pages read. The system page residency time is 14.6 seconds. Based on a system page residency time of 14.6 seconds, what should be done to increase page residency time?
Options
- AIncrease DWQT to 10.
- BDecrease VPSIZE by 45,000 pages.
- CIncrease VPSIZE to 180,000 pages.
- DChange the buffer pool to use PGFIX(YES).
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