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[2016 September-New]Cisco 400-201 Exam PDF Dumps 414Q&As [NQ91-NQ100] Download

2016.09 New 400-201: Cisco CCIE Service Provider Written Exam v4.1 Exam Questions Updated Today!

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Refer to the exhibit. An SP core is running MPLS with OSPF as the IGP used for Loopback propagation. LDP Synchronization is enabled per the given configuration.
What will the traffic flow behavior be after a temporary outage event on PE1 Eth0/0?

A.    Permanently through PE1 -> P2 -> PE4 due to lowest path metric.
B.    Initially through PE1 -> P1 -> PE4, then a few seconds later, it will be over PE1 -> P2 -> PE4.
C.    Permanently through PE1 -> P1 -> PE4 due to lowest path metric.
D.    Initially through PE1 -> P2 -> PE4, then a few seconds later, it will be over PE1 -> P1 -> PE4

Answer: B

In MPLS traffic engineering, which one of the following protocols is used for Path Setup?

A.    BGP
B.    OSPF
C.    ISIS
D.    RSVP

Answer: D

Two Tier 2 Service Providers are using a Tier 1 Service Provider for transport. MPLS is required between the Tier 2 Service Providers for label switching. In this CSC solution, which label stack is correct?

A.    original IP packet, MPLS CSC transport label, MPLS VPN label, and MPLS Tier 2 transport label
B.    original IP packet, MPLS Tier 2 transport label, MPLS VPN label, and MPLS CSC transport label
C.    original IP packet, MPLS VPN label, MPLS Tier 2 transport label, and MPLS CSC transport label
D.    original IP packet, MPLS Tier 2 transport label, MPLS CSC transport label, and MPLS VPN label

Answer: C

What is the PPMP label used for?

A.    for the ingress replication model with BIDIR-PIM in an overlay model
B.    only for the inter-AS mVPN models that use mLDP
C.    for the partitioned mVPN mmodel with PIM signaling in an overlay model
D.    only for unicast over MPLS VPN
E.    for all the default MDT and mVPN models

Answer: C

MPLS Service Providers use Route Distinguishers and Route Targets as methods to control routing for customer VRFs. Which two statements are true about Route Distinguishers and Route Targets? (Choose two.)

A.    Route Targets are values that are used by a PE router to uniquely identify a VRF within its local MP-BGP VPNv4 table.
B.    Route Distinguishers are used by PE routers by exporting and importing routes into a local VRF.
C.    Route Targets are used by PE routers to define how to import and export prefixes into a local VRF database.
D.    Route Targets are extended communities that are used by MP-BGP to identify routes as they are advertised to neighbor PE routers.
E.    Route Distinguishers are values that are used by a PE router to uniquely identify a VRF within its local MP-BGP VPNv4 table.

Answer: CE

Refer to the exhibit. A service provider has multiple time sources in the environment for NTP.
The time source at is intended to be seen as a primary time source.
What command can be issued on PE4 to fix the configuration, ensuring the proper NTP source will be issued?

A.    ntp peer
B.    ntp peer prefer
C.    ntp server source GigabitEthernet0/0
D.    ntp server prefer

Answer: D

An engineer must implement E-Line services for a service provider network. Which two services apply in this situation? (Choose two.)

A.    EVPL
B.    E-Tree
C.    E-LAN
D.    EVC
E.    EPL

Answer: AE

Referring to the exhibit, what could be preventing the R1 router from receiving any prefixes from the R2 BGP neighbor?

A.    The neighbor next-hop-self command is missing on R2
B.    R1 is using the wrong remote AS number in its neighbor remote-as configuration
C.    There is a TCP session establishment problem between R1 and R2
D.    The no sync command is missing on R1
E.    The no sync command is missing on R2
F.    There is a BGP version mismatch between R1 and R2

Answer: B

Refer to the exhibit. Your customer has enabled IPv6 and IPv4 on routers R1 and R2, both running ISIS routing protocol, and they can no longer reach R3 network (R3 does not enable IPv6, enables IPv4 only). Which two steps should be taken to restore reach ability to R3? (Choose two.)

A.    Enable OSPFv3 to support IPv4 and IPv6 simultaneously.
B.    Configure static routes to all unreachable networks and redistribute to IS-IS.
C.    Create an IPv6 tunnel from R2 to R3.
D.    Transition to IS-IS Multiple Topology Mode on R3.
E.    Enable wide metrics.
F.    Transition to IS-IS Multiple Topology Mode on R1 and R2.

Answer: EF

Which two statements regarding the IS-IS DIS election process are true? (Choose two.)

A.    L1 routers on a broadcast network only establish adjacencies with the DIS.
B.    If the DIS becomes unavailable the backup DIS is promoted to DIS.
C.    Adding a router with a higher priority than the current DIS will result in the new router becoming DIS.
D.    Separate L1 and L2 election processes are held on a brodcast network.
E.    A priority of 0 will prevent a router from becoming a DIS.
F.    If there is a tie based on priority, the router whose attached interface has the lowest MAC address becomes the DIS.

Answer: CD


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