Cisco Cisco Certifications 352-001 Questions & Answers

• Question 421:

  An MPLS service provider is offering a standard EoMPLS-based VPLS service to Customer A, providing Layer 2 connectivity between a central site and approximately 100 remote sites. Customer A wants to use the VPLS network to carry its internal multicast video feeds, which are sourced at the central site and consist of 20 groups at 5 Mb/s each. Which service provider recommendation is the most scalable?

  A. EoMPLS-based VPLS already carries multicast traffic in a scalable manner.

  B. Replicate the multicast traffic on the P routers.

  C. Replace VPLS with a Layer 3 MVPN solution to carry the streams between sites.

  D. Use GRE tunnels to carry the streams between sites.

  Correct Answer: C

• Question 422:

  Refer to the exhibit.

  

  After this new OSPF design with per-packet load balancing was implemented, Host A reported that large file downloads from Server A became slow and sometimes failed. The operations team discovered that packets are arriving out of order on R1. Which cost- conscious redesign action will fix the issue?

  A. Upgrade all links to 10 Gbps.

  B. Add an IP SLA probe on R1 and R4.

  C. Adjust the OSPF auto-cost reference bandwidth on R4.

  D. Adjust the OSPF auto-cost reference bandwidth on all routers.

  Correct Answer: D

• Question 423:

  Refer to the exhibit.

  

  A service provider using IS-IS has designed this network with all core links at the Layer 2 control plane. How will they adjust the design to reduce the flooding of update packets?

  A. Change the area type of the links to be level-1-2 to allow level-1 updates.

  B. Change the network type of the links from broadcast to point-to-point.

  C. Use IS-IS mesh groups.

  D. Configure SPF timers to be more aggressive so that updates are more quickly cleared from the queue.

  Correct Answer: C

• Question 424:

  You are designing an 802.11 wireless network to include a controller as a central configuration point and access points across several remote sites. Which two aspects will manage the flow of the traffic to meet these design considerations? (Choose two.)

  A. WLAN local switching with VLAN mapping requires that VLAN ID that is mapped on the AP to match a dynamic interface that is configured on the wireless LAN controller.

  B. Layer 3 roaming is not supported for locally switched WLANs.

  C. The 802.1x authentication for a client associated to an AP on a locally switched WLAN is always handled at the wireless LAN controller side.

  D. The access point can receive multicast traffic in the form of multicast packets from the WLC.

  E. WLAN access lists can be applied only to centrally switched WLANs.

  Correct Answer: BE

• Question 425:

  How should multiple OSPF areas be designed when deployed on a classic three-layer (core/distribution/access) network hierarchy?

  A. The OSPF flooding domain boundary should be at the edge of the core layer.

  B. The OSPF flooding domain boundary should be within the distribution layer.

  C. OSPF should generally be deployed in a three-layer domain hierarchy to align with the physical three-layer hierarchy.

  D. OSPF flooding domain boundaries should be placed with route aggregation in mind.

  Correct Answer: D

• Question 426:

  Why is H-VPLS considered more scalable than flat VPLS?

  A. It minimizes signaling overhead by building two separate layers pseudowire meshes.

  B. It minimizes signaling overhead by only requiring a full pseudowire mesh among N-PEs.

  C. It eliminates signaling overhead on core devices.

  D. It eliminates signaling overhead between the N-PE and U-PE.

  Correct Answer: AB

• Question 427:

  Refer to the exhibit.

  

  Which single design aspect should be configured on the ABRs to reduce the impact of WAN upgrades for spoke routers on the core of the network?

  A. route summarization

  B. stub area

  C. route filtering

  D. not-so-stubby area

  Correct Answer: A

• Question 428:

  You are tasked to design a QoS policy for a service provider so they can include it in the design of their MPLS core network. If the design must support an MPLS network with six classes, and CEs will be managed by the service provider, which QoS policy should be recommended?

  A. map DSCP bits into the Exp field

  B. map IP precedence bits into the DSCP field

  C. map flow-label bits into the Exp field

  D. map IP CoS bits into the IP Precedence field

  E. map IP ToS bits into the Exp field

  Correct Answer: A

• Question 429:

  A Service Provider is designing a solution for a managed CE service to a number of local customers using a single CE platform and wants to have logical separation on the CE platform using Virtual Routing and Forwarding (VRF) based on IP address ranges or packet length. Which is the most scalable solution to provide this type of VRF Selection process on the CE edge device?

  A. Static Routes for Route Leaking

  B. Policy Based Routing

  C. Multi-Protocol BGP

  D. OSPF per VRF Instance

  Correct Answer: B

• Question 430:

  You are tasked with implementing a 1000-phone remote access solution, where phone calls will traverse a WAN edge router. Assuming all of the following features are supported in a hardware- assisted manner, which of the following will have the most negative impact

  A. encryption

  B. stateful firewall

  C. MPLS encapsulation

  D. GRE encapsulation

  Correct Answer: A