AccordingtoJUNOSsoftwarerouteselectionalgorithm,whichIS-ISroutetypeismostpreferred?（）
A. Level1internalroutes
B. Level1externalroutes
C. Level2internalroutes
D. Level2externalroutes
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Which mechanism does External BGP use to prevent the formation of routing loops？（）
AS path
B. Split horizon
C. Poison reverse
D. Unicast RPF check
Whichcommandwouldyouusetoviewinterfaceusagedetailsinrealtime?（）
A. showinterfacesterse
B. showinterfacesextensive
C. monitorinterfacetraffic
D. monitortrafficinterface
Whichofthefollowingaremethodstoautomaticallyupdatetheantivirusapplication?（）(SelectTWO).
A. Establishrulesintheemailschedulingprogramtoperformupdates.
B. SelectUpdateNowfromtheprogramoptions.
C. UsetheAutomaticUpdatefeaturebuiltintotheapplication.
D. Usescripts.
E. UseWindowsUpdate.
Whathappenswhenyouissuetheping172.19.102.2count5command?（）
A. ICMPechorequestsaresentto172.19.102.2infive-millisecondintervals.
B. ICMPechorequestsaresentto172.19.102.2untilfivepacketsaredropped.
C. ICMPechorequestsaresentto172.19.102.2fivetimes.
D. ICMPechorequestsaresentcontinuouslyto172.19.102.2forfiveseconds.
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