单项选择题

In a TCP/IP network， which of the following commands utilizes the ICMP protocol？（）

A.rcp
B.tftp
C.ping
D.rpcinfo

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热门试题

单项选择题Anadapterstatedoesnotshowavailableafterareboot.Whichofthefollowingisthemostprobablecause？（）

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