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?()
A.en0 B.lo0 C.tr0 D.ping results in "Sendto:Network is unreachable" message
单项选择题InaTCP IPnetwork,whichofthefollowingcommandsutilizestheICMPprotocol?()
A.rcp B.tftp C.ping D.rpcinfo
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
单项选择题Theinternetaddress198.102.27.120representswhichofthefollowingaddresses?()
A.Class A B.Class B C.Class C D.Class D
单项选择题Whichofthefollowingadaptersshouldbeconnectedtocoaxialcablingwithouttheuseofmediaconverters?()
A.Adapter with AUI connector B.Adapter with BNC connector C.Adapter with RJ-45 connector D.Adapter with DB-25 connector