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單項(xiàng)選擇題

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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單項(xiàng)選擇題

Which of the following files contains the settings for the system’s DNS domain name and DNS servers？（）

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

單項(xiàng)選擇題

Which of the following options best justifies why a DNS server should be run in a large network system？（）

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

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