单项选择题
A.Change System User Interface
B.TCP/IP Further Configuration
C.TCP/IP Minimum Configuration
D.Network Installation Management
单项选择题 Below is the routing table for host "earth"： If host "earth" tries to ping 128.78.1.5， to which of the following interfaces is the packet being sent？（）
单项选择题 InaTCP/IPnetwork，whichofthefollowingcommandsutilizestheICMPprotocol？（）
单项选择题 Anadapterstatedoesnotshowavailableafterareboot.Whichofthefollowingisthemostprobablecause？（）