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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单项选择题

A.chdev
B.odmadd
C.hostname
D.smitty hostname

单项选择题

A.LES
B.BUS
C.LECS
D.ARP server

单项选择题

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