单项选择题
Which of the following commands should be used to show DNS information？（）
A. trace
B. netstat
C. ifconfig
D. nslookup
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相关考题
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单项选择题
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 -
单项选择题
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 -
单项选择题
Whichofthefollowingcommandsshouldbeusedtoreportstatisticsonnetworkprotocolsusedbythesystem？（）
A. lsattr
B. pstat
C. netstat
D. ifconfig
