单项选择题

Which of the following cable types can cause interference on the network when disconnecting any one machine？（）

A.Coaxial
B.Cat 1 UTP
C.Cat 3 UTP
D.Cat 5 UTP

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单项选择题

A./etc/hosts
B./etc/resolv.conf
C./etc/netsvc.conf
D./etc/named.boot

单项选择题

A.To use ftp and telnet
B.To perform NFS mounts
C.To make /etc/hosts files unnecessary
D.To reduce network traffic and save bandwidth

单项选择题

A.128.0.0.0
B.255.128.0.0
C.255.254.0.0
D.255.255.128.0