單項(xiàng)選擇題

The order of name resolution can be controlled.  
The default is:  
1.DNS/BIND  
2.NIS 
3./etc/hosts  
To change the order of the above name resolutions, which of the following should be used?()

A.nslookup
B.hostname
C./etc/host.equiv
D.environment variable NSORDER

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