单项选择题
Which of the following characteristics applies only to OSPFv3 and not to OSPFv2？（）
A.Several processes can exist simultaneously
B.Requires direct connectivity from the backbone area to all other areas
C.Has the same packet types
D.Can support multiple subnets on a single link
E.Uses a hierarchical structure divided into areas
F.Adjacencies formed with neighbors
相关考题
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多项选择题
Youissuethecommandshowprocessmemory∣includeBGPandnoticethatBGPisconsumingalargepercentageoftherouter’smemory.WhichofthefollowingstepswouldresultinloweringtheamountofmemorybeingconsumedbyBGP？（Chooseallthatapply.）（）
A.Filter unneeded BGP routes
B.Run BGP on a different platform that already has more memory
C.Upgrade the router memory
D.Increase the BGP update timer
E.Compress the BGP table
F.Use a default route instead of maintaining a full BGP table -
多项选择题
WhichofthefollowingtypesofattacksdoesDHCPsnoopingprevent？（Chooseallthatapply.）（）
A.Attacker sends multiple DHCP requests flooding DHCP server
B.Attacker connects rogue server initiating DHCP requests
C.Attacker connects rogue server replying to DHCP requests
D.Attacker sends DHCP jam signal causing DHCP server to crash
E.Attacker sends gratuitous ARP replies， thereby jamming the DHCP server
F.Attacker sends unsolicited DHCP replies， thereby jamming the DHCP server -
单项选择题
Anetworkadministratorentersthecommandcleariproute*andasaresultheseesthemessage，"Pleaseupdatethenetworkdocumentationtorecordwhytheiproutingtablewascleared."Which routerfeaturewasusedinthiscase？（）
A.NetFlow
B.SNMP
C.Debug
D.SysLog
E.EEM
F.CEF
