Online Access Free 642-889 Practice Test

A service provider is interconnecting two customer sites over one IPv4-only enabled area of its core network. The customer requires that the service provider honor the customer's original ToS markings on all hops across the network. Assume that the service provider deploys an L2TPv3 tunnel. Which technique accomplishes the contractual obligations?

• A.ToS to IPP mapping
• B.ToS byte reflection
• C.static ToS byte configuration
• D.ToS to DSCP dynamic mapping

A customer wants two separated sites to be connected via a pseudo-wire. Which solution provides the simplest implementation?

• A.AToM
• B.VPLS
• C.Layer 3 VPN
• D.GETVPN

Which three options are features of MPLS Layer 2 VPNs? (Choose three.)

• A.A routing protocol must be configured between the CE and PE device.
• B.Routing occurs on service provider and customer devices.
• C.Customer sites appear to be on the same LAN.
• D.Traffic between CE and PE is forwarded in Layer 2 format.
• E.Routing occurs on customer devices.
• F.Customer sites appear to be on different LANs in the same routing domain.

Implementing H-VPLS instead of VPLS reduces which requirement?

• A.having a full mesh of PWs between all the UPE routers
• B.the overhead of using BGP or LDP autodiscovery
• C.having to implement MPLS LDP between the UPE and the NPE
• D.having to implement QinQ tagging between the UPE and the NPE
• E.having a full mesh of PWs between all the PE routers in the service provider MPLS core

Which command is used in Cisco IOS XE to display the contents of the LIB?

• A.show mpls forwarding table
• B.show mpls Idp bindings
• C.show mpls Idp discovery
• D.show mpls Idp neighbors