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Q111. Refer to the exhibit. 

Four customer sites are connected through an EoMPLS-based VPLS over an MPLS provider. You are migrating from OSPF to multi-level IS-IS as the routing protocol to run on the four CE routers, and connectivity between all four sites is required. You want to control which CE or CEs will be elected as the Designated Intermediate System. Which two key aspects should be taken into account? (Choose two.) 

A. The DIS role for Level1 and Level2 can be performed by different routers. 

B. The CE with the second highest priority will be elected as the backup DIS on the LAN segment. 

C. One of the CE routers will be elected as the DIS based on interface priority then highest MAC address. 

D. It is recommended to use point-to-point link type on the CEs. 

E. If a new CE router is added to the VPLS cloud with a lower interface priority it will become the DIS. 

Answer: AC 

Q112. When developing an MVPN design, which performance and scalability consideration must be taken into account? 

A. CE end-to-end PIM adjacency establishment 

B. multicast data sent to all PE routers on the default MDT 

C. RP placement in the multicast VRF 

D. RP placement in the customer network 


Q113. To improve the stability of a global network, you have been tasked with changing the design to include link-state topology summarization. What are two issues that you should address as part of the design? (Choose two.) 

A. slow convergence 

B. suboptimal routing 

C. traffic black-holing 

D. packet reordering 

Answer: BC 

Q114. You have been tasked with designing a data center interconnect as part of business continuity. You want to use FCoE over this DCI to support synchronous replication. Which two technologies allow for FCoE via lossless Ethernet or data center bridging? (Choose two.) 



C. Multichassis EtherChannel over Pseudowire 




Answer: BF 

Q115. During a network design review, it is recommended that the network with a single large area should be broken up into a backbone and multiple nonbackbone areas. There are differing opinions on how many ABRs are needed for each area for redundancy. What would be the impact of having additional ABRs per area? 

A. There is no impact to increasing the number of ABRs. 

B. The SPF calculations are more complex. 

C. The number of externals and network summaries are increased. 

D. The size of the FIB is increased. 


Down to date 352-001 exam engine:

Q116. In a large enterprise network with multiple data centers and thousands of access devices, OSPF is becoming unstable due to link flapping. The current design has the access devices multihomed to large aggregation routers at each of the data centers. How would you redesign the network to improve stability? 

A. Add a layer of regional Layer 3 aggregation devices, but leave the ABR function on the data center aggregation routers. 

B. Add a layer of regional Layer 2 aggregation devices, but leave the ABR function on the data center aggregation routers. 

C. Add a layer of regional Layer 3 aggregation devices and move the ABR function to the regional aggregation device. 

D. Add a layer of regional Layer 2 aggregation devices and move the ABR function to the regional aggregation device. 


Q117. What are two benefits of using BFD for failure detection in the design of a network? 

(Choose two.) 

A. BFD can provide failure detection in less than one second. 

B. BFD can be used as a generic and consistent failure detection mechanism for EIGRP, IS-IS, and OSPF. 

C. BFD eliminates router protocol hello notification. 

D. BFD can be used for all types of network interfaces. 

E. BFD is independent of the network protocol. 

Answer: AB 

Q118. What are three key design principles when using a classic hierarchical network model? (Choose three.) 

A. The core layer controls access to resources for security. 

B. The core layer should be configured with minimal complexity. 

C. The core layer is designed first, followed by the distribution layer and then the access layer. 

D. A hierarchical network design model aids fault isolation. 

E. The core layer provides server access in a small campus. 

F. A hierarchical network design facilitates changes. 

Answer: BDF 

Q119. Your company plans to implement an Internet gateway router that is performing NAT. This same gateway will be terminating various IPsec tunnels to other remote sites. Which 

address type isappropriate for the ACL that will govern the sources of traffic entering the tunnel in the inside interface? 

A. inside local 

B. inside global 

C. outside local 

D. outside global 


Q120. Refer to the exhibit. 

If IEEE 802.1w is in use for this network design, what are two locations where spanning-tree root can be placed to ensure the least-disruptive Layer 2 failover for clients within VLANs 3 and 4? (Choose two.) 

A. Switch A 

B. Switch B 

C. Switch C 

D. Switch D 

Answer: CD