642611考试指南及题库分享.docx

1、642611考试指南及题库分享最新活动：Testinside考题大师权威Microsoft、Cisco、SUN、CIW、IBM、Nortel、HP、Oracle等各大IT认证题库，最新考题售价仅180元起。（时间有限！）机会不容错过！需要的朋友一定要抓住这个机会！下面开始我们的正文！642-611考试资料CCIP Implementing Cisco MPLS Exam (MPLS)科目编号：642-611 科目名称：CCIP Implementing Cisco MPLS Exam (MPLS)Implementing Cisco MPLS Exam考试认证: CCIP考试时间:90分钟 (

2、55-65个问题)可用语言:英语642-611 考试是 Cisco 公司的 CCIP Implementing Cisco MPLS Exam (MPLS) 认证考试官方代号，CCIP Implementing Cisco MPLS Exam (MPLS) 认证作为全球IT领域专家 Cisco 热门认证之一，是许多大中IT企业选择人才标准的必备条件。考试描述：he MPLS exam is a qualifying exam for the CCIP certification (Cisco Certified Internetwork Professional). The 642-611 M

3、PLS exam will test materials covered under the Implementing Cisco MPLS course. The exam will certify that the successful candidate has knowledge and skills necessary to gather information from the technology basics to some of the more updated features and functions such as Traffic Engineering, Fast

4、Reroute and any Transport over MPLS (AToM). The exam covers topics on MPLS Concepts, MPLS Label Assignment and Distribution, Frame-Mode/Cell-Mode MPLS Implementation on Cisco IOS Platforms, MPLS Virtual Private Networks Technology, MPLS VPN Implementation, Complex MPLS VPNs, and Internet Access from

5、 a MPLS VPN.考试内容：he following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam.MPLS FundamentalsExplain basic core MPLS technology and conceptsExplain the function of MPLS Lab

6、els and Label StackIdentify MPLS ApplicationsMPLS OperationDescribe the characteristics and behaviors of Label Distribution in Frame-mode MPLSExplain Convergence in Frame-mode MPLSDescribe the characteristics and behaviors of Label Distribution over LC-ATM Interfaces and VC MergeDescribe the feature

7、s of MPLS Label Allocation, Distribution, and Retention ModesExplain the process of LDP Neighbor DiscoveryFrame-Mode/Cell-Mode MPLS Implementation, Configuration and TroubleshootingIdentify the functions of CEF SwitchingExplain and configure Frame-mode MPLS on Cisco IOS platformsMonitor MPLS on Cisc

8、o IOS platforms - Frame-mode interfacesTroubleshoot Frame-Mode MPLS configurations on Cisco IOS PlatformsExplain and configure Label-Controlled ATM MPLSExplain and configure LC-ATM MPLS over ATM Virtual PathMonitor LC-ATM MPLS on Cisco IOS platformsMPLS Virtual Private Networks TechnologyDescribe th

9、e characteristics and functions of Virtual Private NetworksDescribe Overlay and Peer-to-Peer VPNsExplain Major VPN CategorizationDescribe MPLS VPN ArchitectureDescribe the MPLS VPN Routing ModelExplain the process of MPLS VPN Packet ForwardingMPLS VPN Implementation, Configuration and Troubleshootin

10、gExplain MPLS VPN Mechanisms supported on Cisco PlatformsConfigure VRF tablesConfigure MP-BGP Session between PE routersConfigure Small Scale Routing ProtocolsMonitor MPLS VPN OperationConfigure OSPF as the Routing ProtocolConfigure BGP as the Routing ProtocolTroubleshoot basic MPLS VPN configuratio

11、n errorsComplex MPLS VPNsDescribe the advanced VRF Import/Export FeaturesExplain the characteristics of Overlapping VPNsExplain the features of Central Services VPNsDescribe Managed CE Router ServiceInternet Access from a MPLS VPNExplain VPN Internet Access TopologiesDescribe VPN Internet Access Imp

12、lementation MethodsDescribe the methods to Separate Internet Access from VPN ServiceInternet Access Backbone as a Separate VPN考试题库：Exam : Cisco 642-611Title : CCIP Implementing Cisco MPLS Exam (MPLS)1. In reference to the diagram depicting the flow of routing updates in an overlapping VPN, which sta

13、tement is true?A. Sites A1 and A2 will import all networks with RTs 123:750 and 123:1000.B. Sites B1 and B2 will export all networks with RTs 123:760 and 123:1000.C. Sites A1 and A2 communicate with Sites B1 and B2 via A-Central and B-Central.D. Site A-Central exports RTs 123:750 and 123:1000.E. Sit

14、e B-Central is exporting and importing RT 123:1000 so it can communicate with sites A1 and A2.Answer: D2. 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 differen

15、t 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 i

16、s 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 withtechnologies like X.25, Frame Relay or ATM.E. With Layer 2 overlay VPN

17、s, the service provider is not aware of customer routing and has no information aboutcustomer routes.F. It is simple to implement Layer 2 overlay VPNs because the Customer Edge (CE) router just needs a connection tothe Service Providers Provider Edge (PE) router.Answer: BDE3. What are two drawbacks

18、when the Internet is accessed through a dedicated subinterface implementation? (Choosetwo.)A. The VRF will leak routes into the global routing table.B. The P router must run both an IGP and BGP.C. The PE routers must perform Internet routing.D. A limited set of Internet services will be implemented.

19、E. A separate physical link or specific WAN encapsulation is required.Answer: CE4. Which component of MPLS architecture is a simple label-based forwarding engine that is independent of the type ofrouting protocol or label exchange protocol?A. control planeB. data planeC. routing planeD. forwarding p

20、laneAnswer: B5. Refer to the diagram. What problem can be caused by the second P router summarizing the loopback address ofthe 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 un

21、derstand.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 isnot desirable.E. The ingress PE router will not be able to receive th

22、e VPN label from the egress PE router via MP-IBGP.Answer: B6. For which purpose is the command mpls ldp maxhops used?A. In large ATM-MPLS networks, the LFIB can become too large and it may be necessary to limit the maximumdiameter of the MPLS LSPs.B. Because downstream-on-demand label allocation use

23、s hop count to control loop detection, it maybe necessary tolimit the maximum diameter of the MPLS network.C. Because end-to-end delay can cause problems with some voice applications, it may be necessary to limit themaximum diameter of the MPLS network.D. When interconnecting large frame mode MPLS a

24、nd cell mode networks it may be necessary to limit the maximumnetwork diameter to prevent forwarding loops.Answer: B7. In a central services topology, which routes do client VRFs contain?A. routes from the client site, but not from the server siteB. routes from the server site, but not from the clie

25、nt siteC. routes from both the client site and the server siteD. only EBGP routes from either the client site or the server siteAnswer: C8. The exhibit shows a topology where the customer is using Internet access through a central firewall at their centralsite. If the customers MPLS VPN and the Inte

26、rnet access traffic share the same service provider backbone, whichtwo of the following statements are true? (Choose two.)A. Customer Internet traffic can cross the service provider backbone twice, first as VPN traffic and then as Internettraffic.B. Each customer site CE router must perform NAT if t

27、he customer is using private IP addresses.C. Suboptimal routing of the customers VPN traffic will occur.D. The PE routers will need to exchange both VPNv4 and IPv4 BGP routing updates.E. BGP must be used as the routing protocol between the CE and PE routers.Answer: AD9. In the diagram, Internet acce

28、ss is through a dedicated subinterface implementation. Which of its routing tables willPE-2 use to forward packets from Site-2 to Site-1?A. the global routing tableB. the VPNv4 routing tableC. the VRF A routing tableD. the VRF A FIBE. the PE-IG routing tableAnswer: C10. Which statement is true about

29、 overlapping VPNs?A. Sites that participate in more than one VPN import routes with RTs from any VPN in which they participate andexport routes with RTs for all VPNs in which they participate.B. Sites that participate in more than one VPN import routes with RTs for all VPNs in which they participate

30、 andexport routes with RTs for none of the VPNs in which they participate.C. Sites that participate in more than one VPN only import routes with RTs for all VPNs in which they participate.D. None of the above statements are correct regarding overlapping VPNs.Answer: A11. Refer to the diagram. How ma

31、ny VRF tables are needed to support three VPNs (Customer A, Customer B, and aVoIP VPN) with the following requirements:A. 1 VRFB. 3 VRFsC. 4 VRFsD. 5 VRFsE. 7 VRFsAnswer: D12. Which kind of link does a Layer 3 overlay VPN use?A. emulated point-to-pointB. dedicated point-to-pointC. point-to-multipoin

32、tD. permanent virtual circuitsAnswer: A13. In the diagram, the Internet is accessed through a dedicated Internet VPN implementation. Which routing tablewill PE-IG use to forward packets from the Internet to Site-2?A. Global routing tableB. VPNv4 routing tableC. VRF A routing tableD. VRF Internet routing tableAnswer: D14. What is true about how MPLS impl