WhichofthefollowinginterfacesisappropriateforanEthernet……

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Whichofthefollowingcablesisthemostsusceptibletophysicaldamagebyroughhandling？（）

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

单项选择题Whichofthefollowingcommandsisusedtoobservethecurrentstateoftheroutingtable？（）

A.route
B.lsattr
C.netstat
D.ifconfig

单项选择题Anetworkadministratorhasa10base2network.Acardisprovidedthathasboth10base2and10base5ports.WhichofthefollowingtypesofcablesshouldbeselectedinSMITduringconfigurationoftheadapter？（）

A.TP
B.BNC
C.DIX
D.CAT5

单项选择题WhichofthefollowingfilesshouldbeusedtoaltertheorderofwhichDNSserversgetqueriedfirst？（）

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