Which of the following statements is TRUE about the primary system dump 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

单项选择题Ausercomplainsthatthenetworkprinterisnotprinting.Thesystemadministratorknowsthereisaprintqueueforthenetworkprinterandneedstocheckonthequeue.Whichcommandisrun?（）

A. netstat 
B. lpstat 
C. telinit 
D. prtconf 

单项选择题WhichsystemresourcesdoesWLMhavethecapabilitytocontrol?（）

A. CPU, Memory and Network I/O 
B. CPU, Memory and Disk I/O 
C. CPU and Memory 
D. CPU and Disk I/O