单项选择题

The nfsstat -c command shows zero badxid， but retrans and timeouts are sizeable， what is the most probable cause of the problem？（）

A. Too many nfsd’s running
B. Client and server with different buffer sizes
C. Bridges， routers or gateways are receiving too many fragmentated packets
D. Too few nfsd’s running

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热门试题

单项选择题Asystemhasusersdoinginteractiveworkwhilebackgroundjobsarerunning.Interactiveusersarerequestingthatsystemresponsetimebeimprovedforforegroundprocesses.Whichtuningparametersshouldbechangedtoaccomplishthis？（）

A. schedtune -h
B. schedtune -r
C. vmtune -f
D. schedtune -w

单项选择题Whichofthefollowingtoolsisusedtoreportthelocationoflogicalpartitionsofafilesystemonaphysicalvolume？（）

A. lsfs
B. iostat
C. lslv -p
D. lsvg -p

单项选择题WhichofthefollowingcommandswillresetNFSoptionstotheirdefaults？（）

A. nfso -d
B. nfso -c
C. startsrc -g nfs -d
D. startsrc -g nfs -r

单项选择题To examine the Exhibit， press the Exhibit button. While a developer 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 about the machine？（）

A. The machine has too many users.
B. The machine has an I/O bottleneck.
C. The machine has a CPU bottleneck.
D. The machine has a memory bottleneck.

单项选择题Whichofthefollowingcommandsshouldbeusedtomonitorthenumberofbytesreadonanygivendisk？（）

A. tprof
B. topas
C. filemon
D. vmstat