多項選擇題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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1.多項選擇題Which of the following is a valid host IPv6 address? (Choose all that apply.)()

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

2.多項選擇題Which of the following are not BGRP data structures? (Choose all that apply.)()

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

4.多項選擇題Which of the following are not true OSPF LSA rules?()

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

5.多項選擇題Which of the following is not a valid reason for a packet to be punted?()

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

6.單項選擇題A new router is added to an existing HSRP standby group. One of the existing routers is in anactive state, the other is in a standby state. Under what circumstance will the new router becomethe active router?()

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

7.單項選擇題How long will a port remain in the listening state by default?()

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

8.多項選擇題Which of the following commands can be used to gather information about the AS-PATH of a BGProute? (Choose all that apply.)()

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

9.單項選擇題Which of the following is an accurate description of the command copy startup-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

10.單項選擇題Given the multicast IP address of 224.193.5.10, what would the corresponding multicast MACaddress be?()

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

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Which statement about PPPoA configuration is correct?()

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