The rmss command provides the facility to run an application over a range of memory sizes and display the performance statistics. How is the simulated memory reset to the real memory of the machine？（）

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

单项选择题To examine the Exhibit， press the Exhibit button. Using the  ps -el  output as shown in the exhibit， which of the following conclusions is most appropriate to draw？（）

A. The snmpd process is running at a fixed priority of 60
B. If both the syncd process and the portmap process become available to be run at the same time， then the syncd process would get scheduled first
C. If both the userprog process and the qdaemon process become available to be run at the same time， then the qdaemon process would get scheduled first
D. If both the syslogd process and the llbd process become available to be run at the same time， then the llbd process would get scheduled first