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单选题
Using output from "vmstat 2 8," which of the following options is most appropriate to consider when determining if a system is experiencing memory thrashing?（）
A
cy != 1
B
re != 0
C
po/fr > 1/6
D
fr/po > 1/6
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考题
Using output from "vmstat 2 8," which of the following options is most appropriate to consider when determining if a system is experiencing memory thrashing?（）A、 cy != 1 B、 re != 0 C、 po/fr 1/6 D、 fr/po 1/6
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考题
单选题While a user is compiling a C program, "vmstat 120 10" is run to determine the cause of a performance problem. Using the vmstat output as shown in the exhibit, which of the following conclusions is most appropriate to draw?（）A
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考题
单选题When monitoring a system using /usr/bin/vmstat with an interval， the metrics under page pi and page po represent which of the following phrases？（）A
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考题
单选题While monitoring a system using vmstat， which of the following options most likely indicates that the system is CPU bound？（）A
r is greater than 40B
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考题
单选题Which of the following allows verification of the port that a printer is currently using?（）A
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考题
单选题Which of the following will permit an operator to retrieve console log output from the command line?（）A
lscons -lB
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考题
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单选题The fol lowing line of output was extracted from the output of the show ip bgp command on Router R1. Which of the following can be determined from this output?（） Network Next Hop Metric LocPrf Weight Path * 130.1.1.0/28 1.1.1.1 0 1 2 3 4 iA
The route is learne d from an eBGP peerB
The route has no more than three ASNs in the AS_PatHC
The route is the best route for this prefixD
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考题
单选题When monitoring a system using vmstat with an interval， the metrics under page po represent which of the following phrases？（）A
The number pages over the limitB
The pages to paging space per secondC
The number of page operations per secondD
The number of processes waiting for page out
考题
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the time when the last flashback operation in your database was performedB
the time when the first flashback operation in your database was performedC
a list of flashback operations performed in your database using SCN and timeD
the approximate time and the lowest system change number （SCN） to which you can flash back your database
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