單項(xiàng)選擇題

Which of the following statements is TRUE concerning the po column of the vmstat command?()

A. The sys is high when po is high.
B. The po represents the number of page steals.
C. The low values usually indicate insufficient paging space.
D. The low values usually indicate sufficient memory for the load.

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單項(xiàng)選擇題

A typical example of a process # 19082 in the /proc file would be:     
# ls -l /proc/19082     
total 0  
dr-xr-xr-x  1  root system 0    Sep 15  15:12  .     
dr-xr-xr-x  1  root system 0    Sept 15 15:12  ..     
-rw-------  1  root system 0    Sept 15  15:12 as     
 -r--------  1  root system 128  Sept 15  15:12 cred     
--w-------  1  root system 0    Sept 15  15:12 ctl     
dr-xr-xr-x  1  root system 0    Sept 15  15:12 lwp    
 -r--------  1  root system 0    Sept 15  15:12 map     
dr-x------  1  root system 0    Sept 15  15:12 object    
 -r--r--r--  1  root system 448  Sept 15  15:12 psinfo    
-r--------  1  root system 1024 Sept 15  15:12 sigact    
 -r--------  1  root system 1520 Sept 15  15:12 status    
 -r--r--r--  1  root system 0    Sept 15  15:12 sysent  
Writing to which of the following files will allow the owner to stop a process?()

A. status
B. sysent
C. ctl
D. as

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