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Q71. Refer to the exhibit.
Two ISPs have decided to implement MPLS Inter-AS TE. All routers have full reachability to all subnets. RSVP and MPLS TE have been enabled in all routers interfaces in both ISPs, yet Tunnel 14 is not up Which configuration will fix this issue?
A. On R1, apply the command:
interface Tunnel14
mpls traffic-eng passive-interface nbr-te-id 10.10.10.4 nbr-igp-id ospf 10.10.10.1
B. On R1, apply the command:
interface Tunnel14
mpls traffic-eng passive-interface nbr-te-id 10.10.10.4 nbr-igp-id isis 10.0000.0000.0004.00
C. On R1. apply the command:
interface Tunnel 14
tunnel mpls traffic-eng path-option 1 dynamic
D. I On R2. apply the command:
interface Fa0/1
ip router isis
!
router ospf 1
redistribute isis subnets
On R3, apply the command:
interface Fa0/1
ip ospf 1 area 0
!
router isis
redistribute ospf 1
E. On R2, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.3 nbr-igp-id ospf 10.10.10.2
!
On R3, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.2 nbr-igp-id isis 10.0000.0000.0003.00
F. On R2, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.3 nbr-igp-id isis 10.0000.0000.0003.00
!
On R3, apply the command:
interface Fa0/1
mpls traffic-eng passive-interface nbr-te-id 10.10.10.2 nbr-igp-id ospf 10.10.10.2
Answer: F
Q72. Based on the following configuration:
Which two statements about multicast VPN configuration are true? (Choose two.)
A. The multicast tree is created based only on the existence of active sources or receivers behind PEs in the ABC VRF.
B. The service provider core network is required to support SSM.
C. Multicast needs to be enabled only on ABC VRF and is tunneled to participating PE routers in the ABC VRF.
D. The SP core network is required in order to enable the BGP Multicast Address Family on all peering.
E. Multicast is required for the core network in addition to the ABC VRF.
F. The multicast tree exists regardless of whether there are any active sources or receivers in the ABC VRF.
Answer: E,F
Explanation: http://www.ciscopress.com/articles/article.asp?p=32100&seqNum=4
http://www.cisco.com/en/US/tech/tk828/technologies_white_paper09186a00800a3db6.sht ml
Q73. Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control plane resources?
A. HVR
B. SVR
C. SDR
D. DRP
Answer: C
Explanation:
http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c11-512753_ns573_Networking_Solutions_White_Paper.html
Q74. Refer to the exhibit.
Why does R1 not receive a label for 10.0.0.3/32 prefix?
A. R1 does not have an established LDP neighborship with the router announcing the 10.0.0.3/32 prefix.
B. The 10.0.0.3/32 prefix is being null-routed in the downstream neighbor
C. LDP peer is not configured to advertise a label for the 10.0.0.3/32 prefix
D. BGP is not configured to exchange labels with the BGP peer advertising 10.0.0 3/32 prefix
Answer: D
Q75. Refer to the exhibit. The configuration in the exhibit redistributes static route 172.16.0.0/24 into BGP. Which action does the route-map STATIC-TO-BGP do?
A. Route 172.16.0.0/24 cannot be sent to the Internet.
B. Route 172.16.0.0/24 cannot be re-advertised beyond its neighbors.
C. Route 172.16.0.0/24 cannot be advertised outside of AS 100.
D. Route 172.16.0.0/24 cannot be exported from BGP to another protocol.
Answer: C
Q76. A company is deciding between an HVR and SVR solution in order to finalize a virtualization project proposal. Which is an advantage of a HVR solution versus a SVR solution?
A. A HVR solution implements dedicated data plane resources.
B. A HVR solution implements shared control plane resources.
C. A HVR solution introduces significant contention of resources.
D. A HVR solution implements dedicated chassis resources.
Answer: A
Explanation:
Comparison of Virtualized Routing Architectures
Category Hardware-Isolated Virtual Router Software-Isolated Virtual Router
Control plane resources (CPU, memory)
Dedicated
Shared
Data plane resources (forwarding engine, queues)
Dedicated
Shared
Chassis resources (power supplies, blowers, fabric)
Shared
Shared
Management, configuration
Dedicated
Typically shared, but varies depending on degree of virtualization
Connections between virtualized routing entities
Typically external
Typically internal, but possibly external
Per-chassis scalability (routing adjacencies, prefixes)
Increased with additional logical routers
Unaffected by additional virtual routers
Reference: http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c1 1-512753_ns573_Networking_Solutions_White_Paper.html
Q77. Refer to the exhibit. R3 cannot install a route to R1-R2 subnet 2001:1:155:12::/64. Which action resolves this issue?
A. Add the redistribute ospf 1 include-connected command under the ipv6 router eigrp 10 process.
B. For the OSPF process, add the no shutdown command.
C. For prefix-list OSPF_INTO_EIGRP seq 20, replace the prefix with 2001:155:1:12::/64.
D. For route-map OSPF_INTO_EIGRP, add the set metric 1000 1 255 1 1500 command.
Answer: A
Explanation: http://www.ciscopress.com/articles/article.asp?p=2273507&seqNum=8
https://supportforums.cisco.com/document/12110191/understand-include-connected-keyword-use-ipv6-redistribution
Q78. Due to recent acquisitions, a company’s MPLS infrastructure is growing very quickly. Concerns arise about labeling each and every IP address on the P router. Which command would significantly reduce the label allocations without compromising LDP functionalities?
A. ip prefix-list List1 deny prefix/prefix_length
!
mpls ldp label
allocate global prefix-list List1
B. mpls ldp label
allocate global host-routes
C. access-list 1 permit subnet wildcard
mpls ldp neighbor neighbor_ip labels accept 3
D. mpls ldp password required for 10
access-list 10 permit host_ip_1
access-list 10 permit host_ip_2
access-list 10 permit host_ip_n
Answer: A
Q79. Which is the RP address of the IPv6 multicast address FF76:0:130:1234:5678:9abc::4321?
A. 4321:5678:9abc::30
B. 4321:5678:9abc::13
C. 1234:5678:9abc::130
D. 1234:5678:9abc::1
E. 1234:5678:9abc::13
Answer: D
Explanation: Reference:
http://www.netcraftsmen.com/wp-content/uploads/2014/12/20090429-CMU-Introduction_to_IP_Multicast.pdf page 53
Q80. What is the minimum hardware configuration of the multishelf Cisco CRS-1 system?
A. One route processor (RP) card and one modular services card (MSC)
B. One distributed route processor (DRP) and one S13 fabric card (SFC)
C. One line card chassis (LCC) and one fabric card chassis (FCC)
D. One route processor (RP) and one fabric card chassis (FCC)
E. One line card chassis (LCC) and one S13 fabric card (SFC)
Answer: C
Explanation:
1.4. SP high end product
A minimum of one LCC and one FCC are required to configure a multishelf system.