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Q51. Which of the following best describes the label stack for a packet in the VPRN context?
A. An outer label and a transport label.
B. An inner label and a service label.
C. A transport label and a service label.
D. An MPLS transport label
Answer: C
Q52. On Alcatel-Lucent 7750 SR OS, routing information between the CE and PE can be exchanged using the following methods.
A. ISIS, RIP, OSPF,static routes
B. BGP, ISIS, RIP, OSPF,static routes
C. BGP, RIP, OSPF, static routes,OSPF3
D. ISIS, RIP,OSPF,static routes, OSPF3
Answer: C
50. Which of the following statements is TRUE about the VRF?
A. The VRF is a virtual router on the PE router that contains the customer's routes for the VPRN
B. Each PE maintains multiple VRFs based on the number of PE peers it connects to.
C. Each PE has a VRF for each VPRN service provisioned on the router.
D. All of the above.
E. Only A and C.
F. Only A and B
Answer: E
Q53. Which of the following statements best describes how an FDB is populated with MAC addresses in a VPLS service?
A. A VPLS service does not use an FDB.
B. The router reads the destination MAC address of packets passing through the service.
C. The router reads the source MAC address of packets passing through the service.
D. The router uses reverse ARP (RARP) to resolve the MAC addresses for unknown destinations.
E. The router is programmed with MAC addresses by the network administrator.
Answer: C
Q54. hat is a key benefit of a VPLS service?
A. The customer maintains complete control over routing.
B. The adding of new sites is simplified; no re-configuration is required at existing sites.
C. The clear demarcation of functionality between service provider and customer makes
troubleshooting easier.
D. All of the above.
Answer: D
Q55. Which of the following commands is used to configure the encapsulation type of an Ethernet port?
A. configure ethernetencap-typedot1q|null|qinq port port-id
B. configure service port port-id ethemetencap-typedot1q|null|qinq create
C. configure port port-id ethernet encap-type dot1q|null|qmq
D. configure service service-id ethernet encap-type dot1q|null|qinq create
Answer: C
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Q56. Which of the following statements are TRUE about configuring a SDP between an IES and a VPLS? (Choose 2)
A. The SDP must be a mesh
B. The SDP must be a spoke.
C. Once the SDP is configured on both PE routers, both the services will be operationally up without further configurationchanges.
D. The Layer 2 MTUs must match between the IES and the VPLS
E. The Layer 2 MTU must be 14 bytes smaller on the VPLS than it is on the IES.
Answer: B,D
Q57. Choose the following components that are necessary for the configuration of a mirror service. (Choose 2)
A. A mirror destination to indicate which ports to monitor.
B. A mirror source to indicate which ports to monitor.
C. A mirror destination to indicate on which sap or sdp traffic should be replicated.
D. A mirror source to indicate on which sap or sdp traffic should be replicated
Answer: B,C
Q58. Which of the following statements is FALSE regarding 6VPE?
A. 6VPE is a tunneling technology that makes use of MPLS tunnels to transport IPv6 information over an IPv4 MPLS infrastructure.
B. Customers connected to 6VPE could run native IPv6 or IPv4.
C. On the PE router, the next hop for a VPN IPv6 address is an IPv6 address, regardless of the nature of the network between the PEs.
D. 6VPE requires an IPv6-aware MPLS core.
E. Both C and Dare false.
F. All of the above statements are true.
Answer: D
Q59. Click on the exhibit button below.
Assuming the customer only needs to monitor traffic from PE3 to the customer site, what three items are missing from PE3's configuration? (Assume that the IP/MPLS network structure between the local and remote PEsis in place.)
A. The mirror destination configuration on PE5 is missing the "remote-source" command,
B. The mirror destination on PE3needs a "remote-source" command.
C. The mirror service IDs on the local and remote destinations must match.
D. The mirror source on PE3 needs a "remote-source" command.
E. The mirror source command on the remote PE3 needs a command that tells it to monitor port 1/1/2.
Answer: A,C,E
Q60. Which tree in the CLI would you need to be in to add a QoS policy to a SAP?
A. config>router#
B. config>qos#
C. config>port#
D. config>service# Answer: D