Download New Latest (May) Cisco 642-889 Actual Tests 41-50

  QUESTION 41 The Cisco IOS XR address-family ipv4 labeled-unicast and the Cisco IOS/IOS XE neighbor send-label commands are used in which MPLS implementation?   A. Cisco MPLS TE B. CSC using MP-BGP for label exchange C. back-to-back VRF D. AToM E. VPLS   Answer: B Explanation: http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fscscleb.pdf   The MPLS VPN--Carrier Supporting Carrier--IPv4 BGP Label Distribution feature lets you configure your carrier-supporting-carrier Read more [...]

Download New Latest (May) Cisco 642-889 Actual Tests 31-40

  QUESTION 31 When using the Cisco EVC software infrastructure, a double-tagged frame with a customer VLAN of 10 and a service provider VLAN of 150 will be best matched by which encapsulation configuration?   A. encapsulation dot1q 10 second-dot1q any B. encapsulation dot1q 10 second-dot1q 150 C. encapsulation dot1q 10 second-dot1q 50-200 D. encapsulation dot1q 10 E. encapsulation dot1q 150   Answer: E     QUESTION 32 When troubleshooting EoMPLS configuration Read more [...]

Download New Latest (May) Cisco 642-889 Actual Tests 21-30

  QUESTION 21 What are the two AToM interworking modes? (Choose two.)   A. bridged (interworking ethernet) B. routed (interworking ip) C. label-switched (interworking mpls) D. transparent (interworking transparent)   Answer: AB Explanation:http://www.cisco.com/en/US/docs/ios/ios_xe/mpls/configuration/guide/mp_l2vpn_intrntwkg_ xe.html   Interworking is a transforming function that is required to interconnect two heterogeneous attachment circuits (ACs). Several types Read more [...]

Download New Latest (May) Cisco 642-889 Actual Tests 11-20

  QUESTION 11 Implementing H-VPLS instead of VPLS reduces which requirement?   A. having a full mesh of PWs between all the PE routers in the service provider MPLS core B. having a full mesh of PWs between all the UPE routers C. having to implement QinQ tagging between the UPE and the NPE D. having to implement MPLS LDP between the UPE and the NPE E. the overhead of using BGP or LDP autodiscovery   Answer: A Explanation:       C:\Documents and Settings\user-nwz\Desktop\1.JPG Read more [...]

Download New Latest (May) Cisco 642-889 Actual Tests 1-10

Exam A   QUESTION 1 Which two methods can be used for VPLS PW signaling? (Choose two.)   A. static B. BGP C. IGP D. LDP E. RSVP   Answer: BD Explanation:   C:\Documents and Settings\user-nwz\Desktop\1.JPG     QUESTION 2 When implementing MPLS Layer 3 VPNs with customers running OSPF as the CE-PE routing protocol, the service provider MPLS backbone looks like what to the CE routers?   A. the backbone (Area 0) B. an external routing domain Read more [...]