单项选择题
A.show archive
B.show flash
C.show file systems
D.show secure bootset
单项选择题 InanIEEE802.1xdeployment，betweenwhichtwodevicesEAPOLmessagestypicallyaresent？（）
单项选择题 IfyouclicktheConfigurebuttonalongthetopofCiscoSDM isgraphicalinterface，whichTasksbuttonpermitsyoutoconfiguresuchfeaturesasSSH，NTP，SNMP，andsyslog？（）
单项选择题 Forthefollowingoptions，whichfeatureisthefoundationofCiscoSelf-DefendingNetworktechnology？（）