A.Bottom upB.Component swappingC.Top downD.Shoot from t……

多项选择题WhichofthefollowingarenottrueOSPFLSArules？（）

A.OSPF LSA type 5 triggers an LSA type 7 at an ABR between an NSSA and the backbone area
B.OSPF LSA type 1 triggers an LSA type 3 at an ABR.
C.OSPF LSA type 7 triggers an LSA type 5 at an ABR between an NSSA and the backbone area
D.OSPF LSA type 3 triggers an LSA type 4 at an ABR.
E.OSPF LSA type 5 triggers an LSA type 7 at an A5BR but only in N5SAs
F.OSFP LSA type 2 triggers an LSA type 3 at an ABR

多项选择题Whichofthefollowingisnotavalidreasonforapackettobepunted？（）

A.The TCAM has reached capacity
B.An unknown destination MAC address
C.A packet being discarded due to a security violation
D.A Telnet packet from a session being initiated with the switch
E.Routing protocols sending broadcast traffic
F.A packet belonging to a GRE tunnel

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