单项选择题
In a TCP/IP network， which of the following protocols is involved when a user issues a ping command？（）
A.TCP
B.UDP
C.ICMP
D.SMTP
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AllofthefollowingcommandswillsetthehostnameintheODMdatabaseEXCEPT：（）。
A.chdev
B.odmadd
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WhichofthefollowingATMcomponentsareneededtoconfigureanATMSVC（switchedvirtualcircuit）classicalIPinterface？（）
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Which of the following adapters are located in the same planar？（） Ⅰ.00-00-02-08 Ⅱ.01-00-02-08 Ⅲ.00-00-04-01 Ⅳ.00-05-04-01
A.Ⅰ，Ⅱ
B.Ⅲ，Ⅳ
C.Ⅰ，Ⅱ，Ⅲ
D.Ⅰ，Ⅲ，Ⅳ
