A TCP/IP application receives files from a remote machine.  The application reads 32 kilobytes of data at a time to the socket， but has not issued a system call to set the window size. Which of the following procedures should be performed on the personal machine to increase the throughput of the application？（）

单项选择题Whichofthefollowingcommandsshouldbeusedtodeterminewhetheralogicalvolumeiscontiguousacrossadisk？（）

A. lslv
B. lsfs
C. lspv
D. fileplace

单项选择题Thermsscommandprovidesthefacilitytorunanapplicationoverarangeofmemorysizesanddisplaytheperformancestatistics.Howisthesimulatedmemoryresettotherealmemoryofthemachine？（）

A. rmss -c
B. rmss -p
C. rmss -r
D. rmss -s

单项选择题Thesystemadministratorhasbeengettingcomplaintsaboutslowperformancefromtheserver.Afterrunningvmstattheadministratornoticesaveragereadingsthatshowthefreelist（fre）approachingzero，aswellaspage-in（pi）andpage-out（po）valuestobehigh.Furthermore，theapplicationsrunningareessentialtodailybusinessoperations.Whichofthefollowingrecommendationswouldprovidethebestoverallimprovement？（）

A. Increase physical disk
B. Increase number of CPU’s
C. Increase physical memory
D. Increase number of servers

单项选择题WhichofthefollowingcommandsisusedtoadjusttheminpermandMaxpermvaluesofrealmemoryto4%and80%？（）

A. vmtune -N4 -M80
B. vmtune -f4 -F80
C. vmtune -l4 -L80
D. vmtune -p4 -P80

单项选择题AnAIXsystemadministratorwantstoresetthelevelatwhichtheSIGDANGERsignalissenttoprocessessoappropriateactionscanbetakenwhenpagingspaceisrunninglow.Whichofthefollowingcommandsisusedtoresetthelevel？（）

A. vmtune -w
B. svmon -w
C. schedtune -w
D. vmstat -s