[Free] 2017(Oct) Dumps4cert Testinsides Cisco 400-201 Dumps with VCE and PDF Download 11-20

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CCIE Service Provider Written Exam (V 4.1)

Question No: 11

Which three security mechanisms are used to mitigate or protect against DoS attacks that are targeted at a router? (Choose three)

  1. NSR

  2. GSTM

  3. uRPF

  4. BFD

  5. FRR

  6. CoPP

Answer: B,C,F

Question No: 12

An engineer deploys a new Cisco IOS XR router and connects a Gigbit Ethernet port to an existing Cisco Catalyst 3650 Series Switch. The engineer uses known good optics and fiber, but the link has not come up and it is stuck in the down/down state. What is the root cause of this issue?

  1. Cisco IOS XR devices must use copper connections to Catalyst 3650 Series Switches

  2. UDLD must be enabled on the Catalyst 3650 Series switch

  3. CDP is not enabled on the Cisco IOS XR device

  4. Auto negation must be disabled on the Catalyst 3650 Series Switch

Answer: D

Question No: 13

What ISIS TLVs are used to support MPLS traffic Engineering? ( Choose three)

  1. TLV 22 Extended IS neighbor

  2. TLV 10 Authentication Information

  3. TLV 134 Router ID

  4. TLV 132 IP interface Address

  5. TLV 128 IP Internal Reachability

  6. TLV 135 IS Reachability

Answer: A,C,F

Question No: 14

In a Service provider network , a NOC engineer identifies and interface that flaps continuously. This interface connects to an EBGP peer. Which feature can reduce this instability on the service provider network?

  1. BGP PIC

  2. IP event Dampening

  3. IGP Prefix Prioritization

  4. Non-stop Forwarding

Answer: B

Question No: 15

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Refer to the exhibit. A service provider uses RSVP-TE instead of LDP to exchange labels in the MPLS network. Different path must be defined per type of traffic. Which solution meet this requirement?

  1. RDM

  2. PBTS

  3. MAM

  4. CBTS

  5. MPLS TE affinity attributes

Answer: C

Question No: 16

Which two MVPN profile use either PIM or BGP-AD to advertise the Data-MDT? (Choose two)

  1. Profile 0 : Rosen GRE

  2. Profile 5 : MS-PMSI (Partition) MLDP P2MP with BGP-AD

  3. Profile 3 : Rosen GRE with BGP-AD

  4. Profile 4 : MS-PMSI (Partition) MLDP P2MP with BGP-AD

  5. Profile 9 : Rosen MLDP with BGP-AD

  6. Profile 1 : Rosen MLDP

Answer: C,E

Question No: 17

A service provider is using multicast flows to provide streaming video content to its customers. Video streams are sometimes interrupted, and network instability is determined to be the cause. Which action should the service provider take to decrease the burden on the router resources in an unstable unicast routing environment?

  1. increase the PIM hello hold timers

  2. reduce the volume of query messages

  3. filter unnecessary SA messages

  4. tune the RPF backoff

Answer: D

Question No: 18

Which two steps take place in the BGP Link State architecture? (Choose two)

  1. IGP is redistributed into BGP-LS

  2. Advertise the BGP-LS NLRIs to the topology server

  3. IGP uses BGP LS data from remote peers

  4. Enable access to the Adj-RIB-In (BGP raw format )of a peer border router or provider edge router

  5. BGP downloads the received BGP LS data to the IGP component on the router

Answer: A,B

Question No: 19

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Refer to the exhibit. IPTV video clients are connected to R6. Unicast and multicast traffic flows from R1 to R6. The OSPF cost of the R1-R2-R3-R6 path is lower than the R1-R5-R4- R3-R6 path

To enable load sharing and fast reroute, the design team decided to implement MPLS TE tunnels between R1 and R3 using the forwarding adjacency feature. After the MPLS TE tunnels are deployed, the multicast traffic stops working

While trouble shooting the issue, the operations engineer noticed that the OSPF route to the multicast source is learned via the MPLS TE tunnel, which causes the RPF check to fail. Which two solutions can prevent the multicast traffic from being affected by the RPF check failure due to the MPLS TE tunnel deployment? (Choose two)

  1. Replace forwarding adjacency by autoroute announce and enable the multicast-intact feature

  2. Enable PIM on the MPLS TE tunnel on both headend routers

  3. Enable the Multitopology routing feature

  4. Enable a new routing protocol, such as another OSPF process, on the core-facing links

  5. create a static mroute on R3 with the RPF pointing to the MPLS TE tunnel

Answer: A,C

Question No: 20

Which three IP/MPLS feature have been removed form MPLS-TP? (Choose three)

  1. Global and local label

  2. Dual-direction LSP

  3. LSP merging

  4. ECMP

  5. QoS mapping

  6. Protection

  7. PHP

Answer: C,D,G

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