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
单项选择题Ahostistobepartofaverysmallprivatenetwork,whichwillneverbeconnectedtoanyothernetworks.Whichofthefollowingnameresolutionschemeswouldbetheeasiesttoimplement?()
A.DNS B.NIS C.DHCP D.etc/hosts file
单项选择题Theinternetaddress198.102.27.120representswhichofthefollowingaddresses?()
A.Class A B.Class B C.Class C D.Class D