Users complain an AIX server is running slow.  Which of the following commands can be run to determine what is consuming systems resources？（）

单项选择题Asystemadministratorwouldliketosetasystemtorebootafteracrash.Whatisthebestwaytodothis？（）

A. smit chgsys
B. bosboot
C. smit dump
D. bootlist -r

单项选择题Whichofthefollowinglogicalvolumeplacementpoliciesislikelytogivethebestperformanceinmostcases，allotherfactorsbeingequal？（）

A. INTRA-POLICY set to ’edge’， INTER-POLICY set to maximum
B. INTRA-POLICY set to ’center’， INTER-POLICY set to maximum
C. INTRA-POLICY set to ’middle’， INTER-POLICY set to minimum
D. INTRA-POLICY set to ’center’， INTER-POLICY set to minimum

单项选择题ThesystemadministratornoticesthatIPpacketsarenotgettingforwarded.ThesystemadministratorwantstouseanAIXmachineasaninternetworkrouteroverTCP IPnetworks.Whichofthefollowingcommandswillallowthischangeonthefly？（）

A. Some network attributes are runtime attributes that can be changed at any time. Others are loadtime attributes that must be set before the netinet kernel extension is loaded and be placed in the /etc/rc.net or /etc/rc.bsdnet file. This parameter cannot be done on the fly， since a reboot is required.
B. Add to the /etc/rc.net file or if a Berkelye-style network configuration， /etc/rc.bsdnet， and issue the command： no -a ipforwarding=1 to start ipforwarding immediately.
C. Add to the /etc/rc.net file or if a Berkeley-style network configuration， /etc/rc.bsdnet， and issue the command： no -o ipforwarding=0 to start ipforwarding immediately.
D. Add to the /etc/rc.net file or if a Berkeley-style network configuration， /etc/rc.bsdnet， and issue the command： no -o ipforwarding=1 to start ipforwarding immediately.

单项选择题Whichofthefollowingcommandsisruntoadjustthenumberoffreepaging-spacepagesatwhichAIXbeginskillingprocesses？（）

A. schedtune
B. rmss
C. rmps
D. vmtune

单项选择题Afterissuingthenfsstat-rscommand，thenullreceivedcolumnstartstogrow.Thisindicateswhichofthefollowingconditions？（）

A. Not enough NFS daemons running
B. Too many NFS daemons running
C. nfs_tcp_socketsize is too small
D. nfs_tcp_socketsize is too large