单项选择题
A.rcp B.tftp C.ping D.rpcinfo
Anadapterstatedoesnotshowavailableafterareboot.Whichoft...
单项选择题An adapter state does not show available after a reboot. Which of the following is the most probable cause？（）
A.DNS is not working properly B.Ping is not working properly C.The cables are disconnected D.The device driver did not load properly
Ahostistobepartofaverysmallprivatenetwork，whichwillneve...
单项选择题A host is to be part of a very small private network， which will never be connected to any other networks. Which of the following name resolution schemes would be the easiest to implement？（）
A.DNS B.NIS C.DHCP D.etc/hosts file
Theinternetaddress198.102.27.120representswhichofthefol...
单项选择题The internet address 198.102.27.120 represents which of the following addresses？（）
A.Class A B.Class B C.Class C D.Class D
