Which of the following is not a valid reason for a packet to be punted？（）

单项选择题AnewrouterisaddedtoanexistingHSRPstandbygroup.Oneoftheexistingroutersisinanactivestate，theotherisinastandbystate.Underwhatcircumstancewillthenewrouterbecometheactiverouter？（）

A.The new router will become active immediately because it’s the newest router introduced intothe group
B.The new router can become active only when the existing active router and the existing standbyrouter become unavailable
C.The new router has a lower priority value
D.The new router will never become active unless the existing active router becomes unavailable
E.The new router has preempt configured and a higher priority
F.The new router has a higher priority value

单项选择题Howlongwillaportremaininthelisteningstatebydefault？（）

A.Depends on the number of switches in the spanning tree domain
B.50 seconds
C.15 seconds
D.Until the root directs it to start forwarding
E.20 seconds
F.Depends on the pott speed

多项选择题WhichofthefollowingcommandscanbeusedtogatherinformationabouttheAS-PATHofaBGProute？（Chooseallthatapply.）（）

A.show ip bgp neighbors
B.debug ip bgp updates
C.show ip route bgp
D.show ip bgp
E.show ip bgp summary
F.sh ip bgp database

单项选择题Whichofthefollowingisanaccuratedescriptionofthecommandcopystartup-configftp： kevin：cisco@192.168.1.74？（）

A.The configuration on the FTP server is copied to RAM
B.The command is not valid on a Cisco router
C.The configuration file in RAM is copied to an FTP server
D.The configuration file in NVRAM is copied to an FTP server
E.The configuration on the FTP server is copied to NVRAM
F.The configuration will be copied from NVRAM to an FTP server with a filename of Kevin

单项选择题GiventhemulticastIPaddressof224.193.5.10，whatwouldthecorrespondingmulticastMACaddressbe？（）

A.00-00-0c-c0-05-0a
B.00-00-0c-cl-05-0a
C.01-00-5e-00-00-0c
D.01-00-5e-41-05-0a
E.00-00-0c-01-00-5e
F.01-00-5e-cl-05-0a