单项选择题
A.8192
B.16384
C.49152
D.65535
多项选择题 WhichtwooftheseareusedintheselectionofarootbridgeinanetworkutilizingSpanningTreeProtocolIEEE802.1D？（）
单项选择题 SpanningTreeProtocolIEEE802.1sdefinestheabilitytodeploywhichofthese？（）
单项选择题 TworoutersconfiguredtorunBGPhavebeenconnectedtoafirewall，oneontheinsideinterfaceandone ontheoutsideinterface.BGPhasbeenconfiguredsothetworoutersshouldpeer，includingthecorrectBGPsessionendpointaddressesandthecorrectBGPsessionhop-countlimitEBGPmultihop.WhatisagoodfirsttesttoseeifBGPwillworkacrossthefirewall？（）