Download Cisco Certified Design Expert Qualification Exam.352-001.RealTests.2015-03-04.224q.vcex

Vendor: Cisco
Exam Code: 352-001
Exam Name: Cisco Certified Design Expert Qualification Exam
Date: Mar 04, 2015
File Size: 3 MB

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Demo Questions

Question 1
A company plans to include Nonstop Forwarding and Bidirectional Forwarding Detection as a part of their network redundancy plan. In which two ways do NSF and BFD work together when different hardware platforms are compared? (Choose two.)
  1. During supervisor engine or routing engine failover, the NSF feature will always ensure that the BFD at the peer router will not trigger a link down independent of the used hardware platform.
  2. At some hardware platforms, BFD and NSF are not supported together. During supervisor engine or routing engine failover, the BFD at the peer router will trigger a link down.
  3. To ensure that BFD at the peer router will not trigger a link down during NSF, the BFD packets must be processed fast enough, and, during supervisor engine or routing engine failover, by processing the BFD independent from the supervisor engine or routing engine.
  4. Because BFD is always processed at the line cards (not at the supervisor engine or routing engine), a supervisor engine or routing engine failover will not affect the BFD peer router.
  5. Because BFD is always processed at the supervisor engine or routing engine, a supervisor engine or routing engine failover will always trigger a link down at the peer router.
Correct answer: BC
Question 2
A service provider has a Resilient Ethernet Protocol ring running as a metro backbone between its locations in one city. A customer wants to connect one site with one box redundant to the Resilient Ethernet Protocol ring at two different service provider locations. How can this be done without producing any Layer 2 loops within the network design? 
  1. Spanning tree at the service provider side only must be enabled.
  2. Spanning tree at the customer side only must be enabled.
  3. Flex Links at the service provider side only must be enabled.
  4. Flex Links at the customer side only must be enabled.
  5. EtherChannel at the service provider side and the customer side must be enabled.
  6. Spanning tree at the service provider side and the customer side must be enabled.
  7. Flex Links at the service provider side and the customer side must be enabled. 
Correct answer: D
Explanation:
definite answer.
definite answer.
Question 3
Refer to the exhibit. 
  
Your company designed a network to allow server VLANs in a data center to span all access switches. In the design, Layer 3 VLAN interfaces and HSRP are configured on the aggregation switches. In which three ways should the design of the STP domain be optimized for server and application performance? (Choose three.) 
  1. Use loop guard on access ports.
  2. Use PortFast on access ports.
  3. Use root guard on access ports.
  4. Align Layer 2 and Layer 3 forwarding paths. 
  5. Use BPDU Skew Detection on access ports.
  6. Explicitly determine root and backup root bridges.
Correct answer: BDF
Question 4
Voice traffic between two campus enterprise networks is growing. The network designers decide to add a second 10-Mb Metro Ethernet service parallel to their original 10-Mb service in order to provide more bandwidth and diversity. The QoS profile will be the same on the new 10-Mb service due to the voice stability on the first Metro Ethernet link. When the second link is added to the OSPF domain, which traffic design consideration would have the most impact on the voice traffic when both links are active?
  1. per-destination IP address basis
  2. per-flow basis
  3. per-packet basis
  4. per-source IP address basis
Correct answer: C
Explanation:
Question 5
You work as a network designer for a company that is replacing their Frame Relay WAN with an MPLS VPN service, where the PE-to-CE routing protocol is BGP. The company has 3000 routes in their distribution routers, and they would like to advertise their access routers through the MPLS network. Their service provider, however, only supports 1000 prefixes per VRF. Which two design solutions can be applied to ensure that your access routers will be able to reach all devices in your network? (Choose two.) 
 
  1. Use prefix lists on your distribution routers to control which routes are sent to the MPLS network.
  2. On your distribution routers, configure null routes and aggregate routes for the prefixes in your network.
  3. Configure your distribution routers to send a default route to the MPLS network.
  4. Summarize the routes on the MPLS WAN interfaces of your distribution routers.
Correct answer: BC
Question 6
You are designing a network that will run EIGRP over a Metro Ethernet service that does not employ a link-loss technology. What will be the impact on convergence if there is a break in the end-to-end Layer 2 connectivity within the service provider network?
  1. The routers will immediately lose their adjacencies and converge.
  2. The routing protocol will not converge until the hold timers have expired.
  3. The switch ports connected to the router will go down and the routers will immediately converge.
  4. The VLAN on the switches will go inactive, the ports associated on the switch will go down, and the routers will immediately converge.
Correct answer: B
Explanation:
best suitable answer.
best suitable answer.
Question 7
Refer to the exhibit. 
  
Acme Corporation hired you as a network designer to upgrade their network so that it supports IPv4 and IPv6 multicast. Which two protocols are needed on the LAN switch? (Choose two.)
  1. PIM sparse mode
  2. IGMP snooping 
  3. PIM snooping
  4. Source Specific Multicast
  5. MLD snooping
Correct answer: BE
Explanation:
Question 8
A new video multicast application is deployed in the network. The application team wants to use the 239.0.0.1 multicast group to stream the video to users. They want to know if this choice will impact the existing multicast design. What impact will their choice have on the existing multicast design?
  1. Because 239.0.0.1 is a private multicast range, a flood of PIM packets that have to be processed by the CPU and hosts will be sent by the routers in the network.
  2. Because 239.0.0.1 is a private multicast range, the rendezvous point has to send out constant group updates that will have to be processed by the CPU and hosts.
  3. The multicast application sends too many packets into the network and the network infrastructure drops packets.
  4. The 239.0.0.1 group address maps to a system MAC address, and all multicast traffic will have to be sent to the CPU and flooded out all ports.
Correct answer: D
Explanation:
fine answer.
fine answer.
Question 9
What are two design advantages to using virtual port channel? (Choose two.)
  1. enhanced system availability through multiple systems
  2. reduced Spanning Tree Protocol convergence time
  3. loop management without use of Spanning Tree Protocol
  4. ability to use Spanning Tree Protocol blocked ports to forward traffic 
  5. enhanced ability to recover from Spanning Tree Protocol changes
Correct answer: AC
Explanation:
reliable answer.
reliable answer.
Question 10
Refer to the exhibit. 
  
In this design, which technology would provide for the best use of resources to provide end-to-end Layer 2 connectivity? 
  1. MSTP
  2. PAgP
  3. Multichassis EtherChannel
  4. LACP
Correct answer: C
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