单项选择题

The statement： "search austin.ibm.com raleigh.ibm.com" belongs in which of the following files？（）

A./etc/hosts
B./etc/irs.hosts
C./etc/resolv.conf
D./etc/netsvc.conf

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单项选择题

Which of the following interfaces is appropriate for an Ethernet adapter that is configured as standard Ethernet？（）

A.et0
B.at0
C.sa0
D.en0

单项选择题

The local host on a small network is named Earth. There is also a remote host on the network named Saturn. The system administrator of the network is in the /u/tmp directory of Earth， and starts an ftp to Saturn as root. Which of the following sequence of commands issued from the local host， Earth， will：（）。
1.Change to the /u/new directory on Saturn.
2.Check to see if there is an a.out file on remote host Saturn.
3.Transfer a.out from Earth to Saturn.

A.cd /u/new ls a.out put a.out
B.cd /u/new ls a.out get a.out
C.lcd /u/new ls a.out put a.out
D.lcd /u/new ls a.out get a.out

单项选择题

Which of the following cables is the most susceptible to physical damage by rough handling？（）

A.Coaxial
B.Fiber optic
C.Cat 3 UTP
D.Cat 5 UTP