Cisco 400-201 ExamCCIE SP CCIE Service Provider Written Exam

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Q81. 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:

Explanation: 

http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c11-512753_ns573_Networking_Solutions_White_Paper.html 


Q82. Which multicast feature listens multicast conversations maintaining a map in order to control which ports receive specific multicast traffic? 

A. Bidirectional PIM 

B. Source Specific Multicast 

C. PIM assertion 

D. IGMP snooping 

Answer:


Q83. Users are complaining of intermittent high packet loss for seconds at a time. The engineer troubleshooting the issue finds that a TenGigE link is bouncing for milliseconds at a time, causing the traffic path to reconverge onto a congested FastEthernet link. What can the engineer do to prevent this service-affecting reconvergence only in the case of momentary link bounces until the link can be repaired? 

A. decrease the carrier-delay up on both sides of the link 

B. disable keepalives and BFD 

C. decrease the carrier-delay down on both sides of the link 

D. increase the carrier-delay up on both sides of the link 

E. increase the carrier-delay down on both sides of the link 

Answer:


Q84. 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 


Q85. Which two statements about Unified MPLS are true? (Choose two.) 

A. Unified MPLS works on Cisco IOS XR Software only. 

B. Unified MPLS extends MPLS across multidomain networks in a scalable manner. 

C. New technologies or protocols are not used; only MPLS, LDP, IGP, and BGP are used. 

D. ABR loopback prefixes should always be redistributed from the core IGP into the aggregation IGP. 

E. The RRs are part of the control path only. 

Answer: B,D 

Explanation: http://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/116127-configure-technology-00.pdf 


Q86. Two Service Providers are beginning a merger between AS boundaries to provide MPLS-enabled services between their networks. Customers are using both Service Providers for services and, under certain circumstances; there are requirements to extend Layer 2 VPN circuits between each provider. The providers are in the process of completing the technical merger. However, the MPLS is not supported between the providers. Which action allows MPLS Layer 2 VPN circuits to be built over the inter-AS link? 

A. Create a GRE tunnel with the mpls ip command between ASBRs. 

B. Create Layer 2 VPN peerings between PE routers from each provider. 

C. Create a VPNv4 peering between ASBRs to advertise labels between each provider. 

D. Create a sham link between ASBR routers to enable a superbackbone peering for Layer 2 VPN signaling. 

Answer:

Explanation: https://ccdewiki.wordpress.com/2013/07/02/inter-as-l2vpn-mpls-solutions/ 


Q87. What is NETCONF? 

A. It is a standard for installing, manipulating and deleting configuration of network devices. 

B. it is a Cisco proprietary solution to help remove the time, cost and manual steps involved in network element configuration. 

C. It is data modeling language, to help remove the time, cost and manual steps involved in network element configuration. 

D. It is a new recommendation which writes device specific CLI scripts while keeping flexibility in a vendor dependence environment. 

Answer:

Explanation: http://www.tail-f.com/education/what-is-netconf/ 


Q88. Refer to the exhibit. The referenced TE tunnels compete for bandwidth requirements over the limited available bandwidth that is provisioned. Which core MPLS component erases a conflict and provides admission control for any new added TE tunnel? 

A. link management 

B. link attributes 

C. MPLS TE priorities 

D. RSVP 

Answer:

Explanation: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/mpls/configuration/guide/mpls_cg/mp_te_RSVP.pdf 


Q89. Refer to the exhibit. 

MPLS VPN service has been provisioned for a customer by using inter-AS MPLS Option C. It is possible to redistribute ISP1 and ISP2 received loopback addresses into the local IGP. How many labels are associated with packet forwarding between the ASBRs? 

A. 0 

B. 1 

C. 2 

D. 3 

E. 4 

Answer:


Q90. 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 


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