单项选择题

Whichcommandcanyouusetodeterminetheciscoiosfeaturesetonaciscorouter？（）

A.showversion
B.dirflash：includeios
C.showenvironment
D.showdiag
E.showinventory

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单项选择题

IntheimplementationofVLSMtechniquesonanetworkusingasingleClassCIPaddress，whichsubnetmaskisthemostefficientforpoint－to－pointseriallinks？（）

A.255.255.255.240
B.255.255.255.254
C.255.255.255.252
D.255.255.255.0
E.255.255.255.248

单项选择题

WhatisthefunctionoftheCiscoIOScommandipnatinsidesourcestatic10.1.1.5172.35.16.5？（）

A.ItcreatesaglobaladdresspoolforalloutsideNATtransactions.
B.Itestablishesadynamicaddresspoolforaninsidestaticaddress.
C.ItcreatesdynamicsourcetranslationsforallinsidelocalPATtransactions.
D.Itcreatesaone-to-onemappingbetweenaninsidelocaladdressandaninsideglobaladdress.
E.Itmapsoneinsidesourceaddresstoarangeofoutsideglobaladdresses.