单项选择题
A.sh ip route
B.sh ip cef 〈ip_address〉
C.sh adjacency 〈ip_address〉
D.sh ip route 〈ip_addres$〉
E.sh ip adjacency 〈/p_address〉
F.sh ip cef 〈mac_addrQss〉〈ip_address〉
多项选择题 WhichofthefollowingcharacteristicsdescribetheRootGuardfeature？（Chooseallthatapply.）（）
多项选择题 Whichofthefollowingwouldprovidegoodbaselinedocumentationtohaveonhandwhenanalyzingpotentialproblems？（Chooseallthatapply.）（）
多项选择题 Whichofthefollowingarecommonissuesthatshouldbeconsideredwhenestablishingortroubleshootingsite-to-siteVPNs？（Chooseallthatapply.）（）