Which of the following commands should be used to determine whether a logical volume is contiguous across a disk？（）

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

单项选择题Thesystemadministratornoticesthatafterrunningnetstat-rn，severalsmallc’sareshowingupundertheflagscolumns，androutesthatwerenotdefinedarealsoshowingup.Howcantheseclonedroutesbestopped？（）

A. By default cloned routes are turned on.  To turn cloned routes off issue the command：      #no -o tcp_pmtu_discover=0       #no -o udp_pmtu_discover=0       and add to the rc.net or rc.bsdnet file for next reboot
B. By default cloned routes are turned on.  To turn cloned routes off issue the command：        # no -o tcp_pmtu_discover=1        #no -o udp_pmtu_discover=1         and add to the rc.net or rc.bsdnet file for next reboot
C. By default cloned routes are turned on.  To turn cloned routes off issue the command：         #no -o ipforwarding=0         and add to the rc.net or rc.bsdnet file for next reboot
D. By default cloned routes are turned on.  To turn cloned routes off issue the command：         #no -o ipforwarding=1         and add to the rc.net or rc.bsdnet file for next reboot