A system administrator has run topas on a server.  The output shows that the %iowait of the system is 60% and that most of the disk activity is on hdisk0.  Which of the following procedures should be performed to fix this problem?（）

单项选择题OnanewlyinstalledAIXV4machine,whichofthefollowingdefaultvaluesappliestotheipforwardingnetworkoption?（）

A. The ipforwarding is off by default. 
B. The ipforwarding is set on by default. 
C. The value is dynamically determined at boot time by DHCP. 
D. The value is equal to the setting of the directed_broadcast runtime attribute.

单项选择题WhichofthefollowingstatementsisTRUEabouttheprimarysystemdumpdevice?（）

A. It is shared. 
B. It must be /dev/hd6. 
C. It must be an internal disk. 
D. It can be an external device.

单项选择题Usingoutputfrom vmstat28, whichofthefollowingoptionsismostappropriatetoconsiderwhendeterminingifasystemisexperiencingmemorythrashing?（）

A. cy != 1 
B. re != 0 
C. po/fr > 1/6 
D. fr/po > 1/6

单项选择题To examine the Exhibit, press the Exhibit button. Based on the output of the  netstat -p udp  command as shown in the exhibit, which of the following procedures should be performed?（）

A. Increase the number of nfsd's on the client. 
B. Increase the number of biod's on the client. 
C. Decrease the number of nfsd's on the server. 
D. Increase the size of nfs_socketsize on the server.

单项选择题Adiskcontainsseverallogicalvolumes.Whichofthefollowingcommandsindicateshowmuchdataisreadfromorwrittentoaparticularlogicalvolumeonthesamedisk?（）

A. sar 
B. iostat 
C. svmon 
D. filemon