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Q1. Refer to the exhibit.
A service provider is running MPLS TE across its network. IS-IS is deployed as the IGP for the ISP network. The MPLS TE tunnel 0 configured on PE2 is seen in an operational down state. PE2 is a level-1 router and the destination 192.168.1.1 is located in the IS-IS level-2 area. Which action is required to bring the MPLS TE tunnel 0 to up state?
A. Configure the next-address entries as loose paths in the explicit-path.
B. Change the autoroute option from destination to announce.
C. Configure a bandwidth value for the tunnel.
D. Configure an IPv4 address for the Tunnel 0.
E. Add a dynamic path option to the tunnel.
Answer: A
Q2. Refer to the exhibit. A web server is connected to a switch via two Gigabit Ethernet links. These two links are bundled into a single logical link that provides the aggregate bandwidth of 2 Gbps. The support engineer notices that traffic from the Internet to the web server uses both Gigabit Ethernet links. However, traffic from the web server to the Internet uses only one link.
Which CLI command on the exhibit causes this behavior?
A. lacp port-priority 32768 in interface configuration mode
B. channel-group 5 mode passive
C. lacp port-priority 32768 in global configuration mode
D. port-channel load-balance dst-mac
Answer: D
Q3. 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
Q4. An engineer wants to configure MPLS TE Fast Reroute with link protection on five routers. Which methodology can reduce configuration on the point of the local repair router and successfully complete the task?
A. Configure a backup tunnel on the PLR.
B. Enable the autotunnel backup feature.
C. Configure a backup tunnel on the tunnel head end router.
D. Enable the autotunnel primary feature.
Answer: B
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/mpls/configuration/guide/b_mpls_cg42crs/b_mpls_cg42crs_chapter_0100.html#concept_ F19BEEEFC831436AAC9291A87F9B34E5
Q5. Which are the three benefits of using the Yang model? (Choose three.)
A. Reduce lab footprint
B. Improve access to resources
C. Support interoperability that provides a standard way to model management data
D. Support simplified network management applications
E. Provide a scale virtual lab environment
F. Support programmatic interfaces
Answer: C,D,F
Explanation: https://tools.ietf.org/html/rfc6020#page-11
Q6. A network engineer is responsible for implementing a solution with Cisco IOS XR Software that insures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.)
A. TE FRR
B. IP FRR
C. graceful restart
D. BFD
E. NSR
Answer: C,E
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-3/mpls/configuration/guide/b_mpls_cg43xcrs/b_mpls_cg43crs_chapter_01.html#task_1129
Q7. Which MPLS technology will achieve LAN extensions over the service provider backbone?
A. AToM
B. VPLS
C. L2VPN
D. L2TPv3
Answer: B
Explanation: https://tools.ietf.org/html/rfc7041
Q8. Refer to the exhibit. A customer is running IS-IS within a network and is using BGP as a CE-PE routing protocol. Which action allows CE1 to get the subnet 10.10.2.0/24 over the CE1-PE1 link, regardless of whether there is a flap in the MPLS link or backdoor link?
A. Configure the neighbor <PE1-IP>weight 33768 command on CE1 under the BGP process.
B. Configure the distance bgp 115 200 200 command on CE1 under the BGP process.
C. Configure the distance 30 ip command on CE1 under the IS-IS process.
D. Configure the distance bgp 115 200 200 command on CE2 under the BGP process.
E. Configure the neighbor <PE1-IP>weight 33768 command on CE2 under the BGP process.
Answer: B
Q9. Which are two major changes SyncE offers over traditional Ethernet to make it suitable for clock distribution? (Choose two.)
A. SyncE introduces the concept of “Boundary Clocks” and “Transparent Clocks” improving network scalability and accuracy of clock synchronization.
B. Industry standard that guarantee interoperability, since granular details, such as specific field values are specified.
C. A mandated clock accuracy of 4.6ppm.
D. The ESMC protocol for clock selection, distribution, management, traceability, and failover.
E. High-priority synchronization packets so it can continually adjust its own oscillator.
Answer: C,D
Explanation: http://www.cisco.com/c/en/us/support/docs/optical/synchronous-optical-network-sonet/23718-timefaq-23718.html
http://cp.literature.agilent.com/litweb/pdf/5990-4386EN.pdf
Q10. An support engineer has been tasked to protect an ISP infrastructure from the growing number of encrypted DDoS attacks. The solution should also validate the eBGP peering. Which solution accomplishes these goals?
A. BGP FlowSpec
B. BTSH
C. BGP Route Dampening
D. BGP LS
E. RTBH
Answer: B
Q11. A network engineer needs to connect two core switches that use Gigabit Ethernet interfaces in an MPLS backbone and that are separated by a distance of 60 km. Which Cisco GBIC achieves this goal?
A. Cisco 1000BASE-T GBIC
B. Cisco 1000BASE-SX GBIC
C. Cisco 1000BASE-LX/LH GBIC
D. Cisco 1000BASE-ZX GBIC
Answer: D
Explanation:
http://www.cisco.com/web/partners/downloads/765/tools/quickreference/gbic.pdf
Q12. In a frame, the MPLS label is imposed where?
A. Before the layer 2 header
B. Within the Layer 3 header
C. After the Layer3 header and before Layer2 header
D. After the Layer2 header and before Layer3 header
Answer: D
Q13. Refer to the exhibit:
Which Cisco IOS XE configuration method allocates a label for prefixes with a /32 subnet mask only?
A. Option 1
B. Option 2
C. Option 3
D. Option 4
Answer: A
Q14. Refer to the exhibit. Both MPLS TE tunnel 14 and MPLS TE tunnel 124 pass over the same physical links. Which configuration on R1 enables TE 14 to be the primary tunnel and TE 124 to become active when TE 14 is admin disabled?
A. Interface Tunnel14
tunnel mpls traffic-eng priority 3 1
!
Interface Tunnel124
tunnel mpls traffic-eng priority 5 4
B. Interface Tunnel14
tunnel mpls traffic-eng priority 4 1
!
`Interface Tunnel124
tunnel mpls traffic-eng priority 3 2
C. Interface Tunnel14
tunnel mpls traffic-eng priority 7 7
!
Interface Tunnel124
tunnel mpls traffic-eng priority 1 1
D. Interface Tunnel14
tunnel mpls traffic-eng priority 3 2
!
Interface Tunnel124
tunnel mpls traffic-eng priority 4 1
Answer: B
Q15. Which two statements about 10 Gigabit Ethernet WAN PHY mode are true? (Choose two.)
A. The signal maps to an OC-192c/STM-64c payload.
B. The nominal speed is 9.95328 Gbps.
C. It is compatible with Packet Ethernet over SONET.
D. The signal maps to an OC-768c/STM-256c payload.
E. It is compatible with Packet over SONET.
F. The nominal speed is 10.3125 Gbps.
Answer: A,B
Explanation: https://en.wikipedia.org/wiki/10_Gigabit_Ethernet