Which of the following commands should be used to show DNS information？（）

Whenmonitoringasystemusingvmstatwithaninterval，themetricsunderpageporepresentwhichofthefollowingphrases？（）

A. The number pages over the limit
B. The pages to paging space per second
C. The number of page operations per second
D. The number of processes waiting for page out

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While monitoring a system that is CPU bound， which of the following output is most likely to occur？（）

A.A
B.B
C.C
D.D

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