It 업계 중 많은 분들이 인증시험에 관심이 많은 인사들이 많습니다.it산업 중 더 큰 발전을 위하여 많은 분들이Cisco 642-611를 선택하였습니다.인증시험은 패스를 하여야 자격증취득이 가능합니다.그리고 무엇보다도 통행증을 받을 수 잇습니다.Cisco 642-611은 그만큼 아주 어려운 시험입니다. 그래도Cisco 642-611인증을 신청하여야 좋은 선택입니다.우리는 매일매일 자신을 업그레이드 하여야만 이 경쟁이 치열한 사회에서 살아남을 수 있기 때문입니다.
Cisco인증642-611시험을 위하여 최고의 선택이 필요합니다. ITExamDump 선택으로 좋은 성적도 얻고 하면서 저희 선택을 후회하지 않을것니다.돈은 적게 들고 효과는 아주 좋습니다.우리ITExamDump여러분의 응시분비에 많은 도움이 될뿐만아니라Cisco인증642-611시험은 또 일년무료 업데이트서비스를 제공합니다.작은 돈을 투자하고 이렇게 좋은 성과는 아주 바람직하다고 봅니다.
시험 번호/코드: 642-611
시험 이름: Cisco (CCIP Implementing Cisco MPLS Exam (MPLS))
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Q&A: 509 문항
업데이트: 2013-11-28
만약 여러분은Cisco 642-611인증시험취득으로 이 치열한 IT업계경쟁 속에서 자기만의 자리를 잡고, 스펙을 쌓고, 전문적인 지식을 높이고 싶으십니까? 하지만Cisco 642-611패스는 쉬운 일은 아닙니다.Cisco 642-611패스는 여러분이 IT업계에 한발작 더 가까워졌다는 뜻이죠. 하지만 이렇게 중요한 시험이라고 많은 시간과 정력을 낭비할필요는 없습니다. ITExamDump의 완벽한 자료만으로도 가능합니다. ITExamDump의 덤프들은 모두 전문적으로 IT관련인증시험에 대하여 연구하여 만들어진것이기 때문입니다.
IT업계에서 자신만의 위치를 찾으려면 자격증을 많이 취득하는것이 큰 도움이 될것입니다. Cisco 인증 642-611시험은 아주 유용한 시험입니다. Cisco 인증642-611시험출제경향을 퍼펙트하게 연구하여ITExamDump에서는Cisco 인증642-611시험대비덤프를 출시하였습니다. ITExamDump에서 제공해드리는Cisco 인증642-611시험덤프는 시장에서 판매하고 있는Cisco 인증642-611덤프중 가장 최신버전덤프로서 덤프에 있는 문제만 공부하시면 시험통과가 쉬워집니다.
642-611 덤프무료샘플다운로드하기: http://www.itexamdump.com/642-611.html
NO.1 With MPLS VPNs, if the CE-PE routing protocol is BGP, which statement below is true?
A.The different customer sites must use different autonomous system numbers.
B.Manual route redistribution between EBGP and MP-BGP is required.
C.The SOO extended BGP community can be used to prevent routing loops.
D.A BGP virtual sham-link is required between the customer site's CE routers to ensure optimal routing
between the customer sites.
E.The customer's autonomous system number must match the MPLS VPN service provider's
autonomous system number.
Correct:C
Cisco 642-611 642-611 642-611
NO.2 What best describes the following configuration example of allowas-in? router bgp 100
address-family ipv4 vrf CustomerAneighbor 195.12.4.5 remote-as 123 neighbor 195.12.4.5
activateneighbor 195.12.4.5 allowas-in 2
A.permits incoming BGP updates defined by access-list 2
B.permits incoming BGP updates defined by class-map 2
C.permit incoming BGP updates defined by route-map 2
D.permits incoming BGP updates with no more than two occurrences of AS 100 in the AS path
E.permits incoming BGP updates with no more than two occurrences of AS 123 in the AS path
Correct:D
Cisco 642-611 642-611 642-611
NO.3 Which three statements are correct regarding Layer 2 overlay VPNs and peer-to-peer VPNs?
(Choose three.)
A.Peer-to-peer VPNs require the establishment of virtual circuits to connect the different customer sites
together.
B.Peer-to-peer VPNs require the service provider to participate in the customer routing, accepting
customer routes, transporting them across the service provider backbone, and finally propagating them to
other customer sites.
C.With peer-to-peer VPNs, the service provider is responsible for transport of Layer 2 frames between
customer sites, and the customer takes responsibility for all higher layers.
D.The implementation of Layer 2 overlay VPNs is the traditional switched-WAN model, implemented with
technologies like X.25, Frame Relay or ATM.
E.With Layer 2 overlay VPNs, the service provider is not aware of customer routing and has no
information about customer routes.
F.It is simple to implement Layer 2 overlay VPNs because the Customer Edge (CE) router just needs a
connection to the Service Provider's Provider Edge (PE) router.
Correct:B D E
Cisco 642-611 642-611 642-611
NO.4 In the diagram, the Internet is accessed through a dedicated Internet VPN implementation.
Which routing table will PE-IG use to forward packets from the Internet to Site-2?
A.Global routing table
B.VPNv4 routing table
C.VRF A routing table
D.VRF Internet routing table
Correct:D
Cisco 642-611 642-611 642-611
NO.5 What is the difference in implementation between a managed CE services MPLS VPN and a
central services MPLS VPN?
A.RD assignment
B.selective routes export
C.selective routes import
D.MP-BGP route redistribution filtering
E.CE-PE routing process
F.none
Correct:B
Cisco 642-611 642-611 642-611
NO.6 Refer to the exhibit. How many different VRFs are required to support the given connectivity
requirements? Sites CE1A and CE1B require connectivity to each other. Sites CE2A and CE2B
require connectivity to each other. Site CE1C requires connectivity to sites CE1A, CE1B, CE3A,
and CE3B. Site CE2C requires connectivity to sites CE2A, CE2B, CE3A, and CE3B. Sites CE3A and
CE3B require connectivity to each other and to CE1C and CE2C.
A.3 VRFs
B.4 VRFs
C.5 VRFs
D.6 VRFs
E.8 VRFs
Correct:C
Cisco 642-611 642-611 642-611
NO.7 In the diagram, Internet access is through a dedicated subinterface implementation. Which of
its routing tables will PE-2 use to forward packets from Site-2 to Site-1?
A.the global routing table
B.the VPNv4 routing table
C.the VRF A routing table
D.the VRF A FIB
E.the PE-IG routing table
Correct:C
Cisco 642-611 642-611 642-611
NO.8 What is a major drawback of using traditional IP routing over an ATM network when connecting
multiple sites?
A.Each ATM switch in the path has to perform Layer 3 routing lookup.
B.ATM virtual circuits have to be established between the different sites.
C.There is high ATM management overhead between the ATM switch and the router at each site.
D.Each ATM switch has to be manually configured to participate in Layer 3 routing.
E.There is high PNNI overhead.
Correct:B
Cisco 642-611 642-611 642-611
NO.9 Refer to the diagram. What problem can be caused by the second P router summarizing the
loopback address of the egress PE router?
A.The first P router will be faced with a VPN label which it does not understand.
B.The second P router will be faced with a VPN label which it does not understand.
C.The egress PE router will not be able to establish a label switch path (LSP) to the ingress PE router.
D.A label switch path (LSP) will be established from the ingress PE router to the egress PE router, an
event that is not desirable.
E.The ingress PE router will not be able to receive the VPN label from the egress PE router via MP-IBGP.
Correct:B
Cisco 642-611 642-611 642-611
NO.10 When nonadjacent LDP neighbors are used for implementing an MPLS traffic engineering
solution, how are the nonadjacent LDP neighbors discovered?
A.using multicast CR-LSP (constraint-based LSP)
B.using unicast CR-LSP (constraint-based LSP)
C.using multicast LDP hello messages
D.using unicast LDP hello messages
E.using multihop MP-IBGP
F.using multihop MP-EBGP
Correct:D
Cisco 642-611 642-611 642-611
NO.11 What is a benefit of CEF switching?
A.CEF supports IP source prefix-based switching using the FIB.
B.CEF uses less memory than fast switching uses.
C.CEF is less CPU intensive than fast switching is.
D.CEF provides Netflow statistics with minimum CPU overhead.
E.CEF allows multiple data planes to share a common control plane.
Correct:C
Cisco 642-611 642-611 642-611
NO.12 Look at the picture.
Correct:
Green choice1---->Yellow Choice1
Green choice5---->Yellow Choice2
Green choice9---->Yellow Choice3
Cisco 642-611 642-611 642-611
NO.13 Refer to the exhibit. A diagram of a router connected to an MPLS-enabled ATM switch via an
LC-ATM MPLS interface, and the partial configuration for the MPLS-enabled ATM switch and
router are shown. Which statement describes what is incorrect about the configuration?
A.The control VPI/VCI numbers do not match.
B.The ATM VPI range of 2-3 is invalid.
C.CEF has not been enabled on the router ATM 3/0.2 subinterface.
D.VC-merge has not been enabled on the switch ATM 0/1/2 interface.
E.The router has not been configured to specifically use LDP.
Correct:A
Cisco 642-611 642-611 642-611
NO.14 Refer to the exhibit. Based on the show outputs, which condition could be preventing the P1
router from establishing TDP adjacency with its neighbor over the s0/0.211 and s0/0.212
subinterfaces?
A.The s0/0.211 and s0/0.212 subinterfaces line protocol are in the down state.
B.The P1 router cannot establish a TCP session with its neighbors.
C.The P1 router is missing the mpls label protocol LDP command.
D.The show mpls tdp neighbor command needs to be used to view the TDP neighbor status.
Correct:B
Cisco 642-611 642-611 642-611
NO.15 Look at the picture.
Correct:
Green choice1---->Yellow Choice1
Green choice6---->Yellow Choice2
Green choice2---->Yellow Choice3
Green choice5---->Yellow Choice4
Green choice3---->Yellow Choice5
Green choice4---->Yellow Choice6
Cisco 642-611 642-611 642-611
NO.16 Refer to the exhibit. A diagram of a router connected to an MPLS-enabled ATM switch via an
LC-ATM MPLS interface, and a partial configuration for the MPLS-enabled ATM switch and router
are shown. Which statement describes what is incorrect about the configuration shown?
A.CEF has not been enabled on the router.
B.The VPI range of 2-3 is invalid.
C.The control VPI/VCI has not been set to 0/32 on the router.
D.VC-merge has not been enabled on the ATM switch interface.
E.The router has not been configured to specifically use LDP.
Correct:A
Cisco 642-611 642-611 642-611
NO.17 What are three characteristics of overlay VPNs? (Choose three.)
A.Service provider infrastructure appears as point-to-point links to the customer routers.
B.Routing protocols run directly between the customer routers.
C.Implementing optimum routing between customer sites requires a partial mesh of virtual circuits.
D.Service provider PE routers use route filtering to isolate between different customers.
E.Service provider does not participate in customer routing.
Correct:A B E
Cisco 642-611 642-611 642-611
NO.18 Which kind of link does a Layer 3 overlay VPN use?
A.emulated point-to-point
B.dedicated point-to-point
C.point-to-multipoint
D.permanent virtual circuits
Correct:A
Cisco 642-611 642-611 642-611
NO.19 Lab.
Correct:
Cisco 642-611 642-611 642-611
NO.20 BGP is used as the CE-PE routing protocol in an MPLS VPN. The customer routes are
successfully propagated from the CE router to the ingress PE router, but they are not showing up
on the egress PE router. What is the most likely cause of the problem?
A.There is a BGP-to-MPBGP redistribution error on the ingress PE router.
B.There is a MPBGP-to-BGP redistribution error on the egress PE router.
C.One of the P routers is performing route summarization, breaking the path between the ingress and the
egress PE routers into two LSPs.
D.RTs attached to the CE routes exported by the ingress router are not matched by at least one of the
import RTs on the egress PE router.
E.A route reflector is used to propagate the routes from the ingress PE router to the egress PE router,
thus breaking the LSP.
Correct:D
Cisco 642-611 642-611 642-611
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