A.Ⅰ，ⅡB.Ⅲ，ⅣC.Ⅰ，Ⅱ，ⅢD.Ⅰ，Ⅲ，ⅣWhich of the following adapters……

单项选择题Whichofthefollowingfunctionsdoesthe ifconfigen4down perform？（）

A.Removes the en4 interface
B.Removes the en4’s network route
C.Stops all traffic through the en4 interface
D.Stops all traffic through the en4 and removes its network route from the routing table

单项选择题Whenchoosingahostname，whichofthefollowingnamingconventionsismostimportanttoconsider？（）

A.The name is unique globally
B.The name is unique in a specified domain
C.The name is not named after a person， place or thing
D.The name has special meaning to the machine’s function

单项选择题Atboottime，whichofthefollowingservicesutilizesacentralservertoassignIPaddressestoahost？（）

A.LDAP
B.bootp
C.DHCP
D.bind

单项选择题AllofthefollowingareinvolvedinaddingorremovingroutesfromtheAIXroutingtableEXCEPT：（）。

A.arp
B.rip
C.icmp
D.ifconfig

单项选择题WhichofthefollowinginterfacesisappropriateforanEthernetadapterthatisconfiguredwithanIEEE802.3frametype？（）

A.at0
B.en0
C.et0
D.tr0