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

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热门试题

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

多项选择题Whichofthefollowingroutermodelswillsupport1000tunnels？（）

A.2811
B.2801
C.2851
D.2821
E.1841
F.3825

单项选择题Whichofthefollowingisnotatypicalmaintenancetaskwithinanetworkmaintenancemodel？（）

A.Providing technical customer support
B.Changing configurations
C.Updating software
D.Monitoring network performance
E.Replacing hardware
F.Scheduling backups