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.OSPF per VRF Instance
• B.Multi-Protocol BGP
• C.Static Routes for Route Leaking
• D.Policy Based Routing

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Which of the following design options meet the requirement to provide IPv6 interdomain multicast?

• A.PIM SSM
• B.Auto-RP
• C.PIM dense mode
• D.MSDP

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A data center provider has designed a network using these requirements:
-Two data center sites are connected to the public Internet.
-Both data centers are connected to different Internet providers.
-Both data centers are also directly connected with a private connection for the internal traffic,
and public Internet traffic can also be routed at this direct connection. -The data center provider has only one /19 public IP address block.
Under normal conditions, Internet traffic should be routed directly to the data center where the services are located. When one Internet connection fails, the complete traffic for both data centers should be routed by using the remaining Internet connection. In which two ways can this routing be achieved? (Choose two.)

• A.One /20 block is used for the first data center and the second /20 block is used for the second data center. The /20 block from the local data center is sent out with a low BGP local preference and the /20 block from the remote data center is sent out with a higher BGP local preference at both sites.
• B.BGP will always load-balance the traffic to both data center sites.
• C.One /20 block is used for the first data center and the second /20 block is used for the second data center. The /20 block from the local data center is sent out with a low BGP weight and the /20 block from the remote data center is sent out with a higher BGP weight at both sites.
• D.One /20 block is used for the first data center and the second /20 block is used for the second data center. Each /20 block is only sent out locally. The /19 block is sent out at both Internet connections for the backup case to reroute the traffic through the remaining Internet connection.
• E.The data center provider must have an additional public IP address block for this routing.
• F.One /20 block is used for the first data center and the second /20 block is used for the second data center. The /20 block from the local data center is sent out without path prepending and the /20 block from the remote data center is sent out with path prepending at both sites.

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The enterprise customer ABC Corp will deploy a centralized unified communications application to provide voice, and instant messaging to their branch offices. Some of the branch offices are located in remote locations and are connected via a 1.5 Mb/s Layer 3 VPN connection. Which two ways are the most cost-effective to ensure that this new application is implemented properly? (Choose two)

• A.Set LFI on the WAN connections to interleave the small voice packets with the large data packets
• B.Set voice activity detection to avoid sending packets when the conversations is silent
• C.Use a low bitrate codec such as G 711
• D.Use a low bitrate codec such as G 729
• E.Set WAN optimization on the CE router to compress the voice packets for improved bandwidth utilization and performance
• F.Enable VRF-Lite on the CE router to create a separate voice VRF

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You have been asked to establish a design that will allow your company to migrate from a WAN service to a Layer 3 VPN service. In your design, you are keeping some WAN links between critical sites as a backup for this service. You plan to use OSPF as your IGP and BGP for the PE- CE protocol. When the Layer 3 VPN service is available, how will you prevent transit traffic over the backup links?

• A.Redistribute routes at the CE as external type 1.
• B.Redistribute routes at the CE as external type 2.
• C.Use conditional advertisement only when the Layer 3 service is down.
• D.Manually turn off the backdoor link when the Layer 3 service is up.

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