多项选择题

A.Unknown destination MAC addressB.Bad cablingC.MAC for……

You examine the port statistics on a Cisco Catalyst switch and notice an excessive number offrames are being dropped. Which of the following are possible reasons for the drops？（）

A.Unknown destination MAC address
B.Bad cabling
C.MAC forwarding table is full
D.Port configured for half duplex
E.Port configured for full duplex
F.Network congestion

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多项选择题WhichofthefollowingisavalidhostIPv6address？（Chooseallthatapply.）（）

A.ff02：a：b：c：：l/64
B.2001：aaaa： 1234：456c： 1/64
C.2001：000a：lb2c：：/64
D.2fff：f：f：f：：f/64
E.ff02：33ab：l：32：：2/128
F.2001：bad：2345：a：b：：cef/128

多项选择题WhichofthefollowingarenotBGRPdatastructures？（Chooseallthatapply.）（）

A.EIGRP database table
B.EIGRP CEF table
C.EIGRP neighbor table
D.EIGRP adjacency table
E.EIGRP interface table
F.EIGRP topology table

单项选择题Severaltroubleshootersareabouttoworkonthesameproblem.Whichofthefollowingtroubleshootingmethodswouldbemostappropriatetomakethebestuseofthetroubleshooters1time？（）

A.Bottom up
B.Component swapping
C.Top down
D.Shoot from the hip
E.Divide and conquer
F.Follow the traffic path

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