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Q1. When troubleshooting EoMPLS configuration problems, which three parameters must match between the two ends of the pseudowire configurations? (Choose three.)
A. control word usage
B. MTU size
C. pseudowire ID
D. Xconnect group name
E. EFP subinterface number
Answer: A,B,C
Q2. 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
C. a superbackbone that is transparent to the CE OSPF routers
D. a transit area (similar to a transit area for supporting virtual links)
Answer: C
Q3. Which flavor of MPLS Layer 3 VPN has MPLS enabled on PE-CE links?
A. basic
B. CSC
C. inter-AS
D. AToM
E. VPLS
Answer: B
Q4. he Cisco IOS XR address-family ipv4 labeled-unicast and the Cisco IOS/IOS XE neighbor sendlabel 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
Q5. When implementing EoMPLS on Cisco IOS XR routers, which command under the l2vpn configuration mode is used to define the pseudowire?
A. pbb
B. xconnect
C. connect
D. bridge
E. bridge-domain
Answer: B
Q6. Which Cisco IOS XR BGP configuration command is required to enable MP-BGP to carry IPv6 VPN routes?
A. address-family ipv4 unicast
B. address-family ipv6 unicast
C. address-family vpnv4 unicast
D. address-family vpnv6 unicast
Answer: D
Q7. In Layer 3 MPLS VPN implementations, which protocol is used to carry the VPNv4 routes from PE to PE?
A. RSVP
B. IGP
C. MP-BGP
D. LDP
Answer: C
Q8. Which method is used to provide inter-AS AToM services?
A. back-to-back VRF
B. targeted LDP
C. pseudowire stitching
D. AToM interworking
E. Cisco MPLS TE tunnels
F. autodiscovery
Answer: C
Q9. Which type of VPN requires a full mesh of virtual circuits to provide optimal site-to-site connectivity?
A. MPLS Layer 3 VPNs
B. Layer 2 overlay VPNs
C. GET VPNs
D. peer-to-peer VPNs
Answer: B
Q10. When implementing CSC services, which two methods can be used to exchange label information between the downstream CSC customer carrier and the CSC backbone carrier? (Choose two.)
A. using MP-BGP
B. using RSVP
C. using IGP and LDP
D. using back-to-back VRF
E. using front VRF and internal VRF
Answer: A,C