单项选择题

A.pingB.netstatC.nbtstatD.telnetAnadministratorisinchar……

An administrator is in charge of several remote servers in Japan. Users call and complain they cannot connect to the company’s resources located on those servers. Which of the following commands would allow the administrator to verify the servers are running？（）

A.ping
B.netstat
C.nbtstat
D.telnet

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单项选择题WhichofthefollowingnetworkprotocolsisneededtoensurethatuserscantypeinaFQDNinsteadoftheIPaddress？（）

A.DNS
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A.10.2.127.220/16
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A.Telnet
B.FTP
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