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Oracle 11G OCP 1Z0-053 254

原创 Oracle 作者:LuiseDalian 时间:2014-09-11 07:52:37 0 删除 编辑

(254)Which three statements correctly describe the features of the I/O calibration process? (Choose three.)  

A. Only one I/O calibration process can run at a time.


B. It automates the resource allocation for the Automated Maintenance Tasks.


C. It improves the performance of the performance-critical sessions while running.


D. It can be used to estimate the maximum number of I/Os and maximum latency time for the system.


E. The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.


答案:(A、D、E)

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