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October 11, 2017

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Q61. Cisco IOS XR has implemented a nonstop routing feature so that when RP failover occurs, the routing information can be recovered locally. Which protocol does not support the NSR feature? 

A. OSPF 

B. LDP 

C. BGP 

D. IS-IS 

E. RSVP 

Answer:


Q62. Refer to the exhibit. An MPLS Layer 3 VPN service has been provisioned for a customer. What will be the ToS value at Site-B for the exceeded traffic that it is sent from Site-A with ToS 2? 

A. 0 

B. 2 

C. 3 

D. 4 

E. No exceeded traffic will reach Site-B. 

Answer:


Q63. DRAG DROP 

Drag and drop each fast detection mechanism on the left to its definition on the right. 

Answer: 


Q64. The following MPP configuration is applied on RA router: RP/0/RSP0/CPU0:RA#sh running-config control-plane 

control-plane 

management-plane 

inband 

interface TenGigE 0/0/0/0 

allow SSH peer 

address ipv4 5.0.0.0/8 

Which two pieces of information are correct in regards to management traffic on RA router? (Choose two) 

A. SNMP traps going out on TenGigE 0/0/0/0 interface are dropped. 

B. SNMP polling coming through TenGigE 0/0/0/0 interface are dropped. 

C. Telnet connections coming through MgmtEth0/RSP0/CPU0/0 interface are accepted. 

D. SSH connections coming through TenGigE 0/0/0/0 interface from 5.5.5.5 host are accepted. 

E. TACACS traffic going through TenGigE 0/0/0/0 interface are dropped. 

Answer: B,D 


Q65. Which MPLS technology will achieve LAN extensions over the service provider backbone? 

A. AToM 

B. VPLS 

C. L2VPN 

D. L2TPv3 

Answer:

Explanation: https://tools.ietf.org/html/rfc7041 


Q66. 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 


Q67. What BGP feature improves on DDOS mitigation by allowing instructions that are more granular and allow for source address, destination, address, L4 details, and packet specifics to be analyzed? 

A. RCMD 

B. RTBH 

C. BGP Flowspec 

D. BGPSec 

Answer:

Explanation: 

https://supportforums.cisco.com/document/12226726/asr9000xr-understanding-bgp-flowspec-bgp-fs 


Q68. Refer to the exhibit. Which IOS command under the BGP VPNv4 address family implements a secondary backup path to the destination 192.168.1.1? 

A. maximum-paths ibgp2 

B. bgp additional-paths install 

C. bgp recursion host 

D. bgp advertise-best-external 

Answer:

Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/routing/command/reference/b_routing_cr42crs/b_routing_cr42crs_chapter_01.html#wp28 41279186 


Q69. Refer to the exhibit. OSPFv3 is already running, and R1 has added a new subnet (loopback 11). What is the reason code on R4 when executing the command show ipv6 ospf statistics? 

A. P (partial) 

B. N (network) 

C. R (router) 

D. L (link) 

Answer:


Q70. A Service Provider is designing control policies at the customer edge of the network, in order to prevent usage that exceeds the contracted terms. A new client that is contracted for only 2 Gbps is connecting to the Service Provider edge with a 10 Gbps interface. Which two QoS strategies meet the design goal? (Choose two.) 

A. On the service Provider edge, enable traffic shaping on the customer port. 

B. On the customer edge device, enable traffic shaping on the interface that is connected to the Service Provider. 

C. On the customer edge device, enable policing on the interface that is connected to the Service Provider. 

D. On the service Provider edge, enable policing on the customer port. 

E. On the service Provider edge, enable WRED on the customer port. 

F. On the customer edge, enable WRED on the interface that is connected to the Service Provider. 

Answer: B,D 

Explanation: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/xe-3s/asr1000/qos-plcshp-xe-3s-asr-1000-book/qos-plcshp-oview.html 



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