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Cisco Certified Design Expert Practical Exam 352-011 Question # 3 Topic 1 Discussion

Cisco Certified Design Expert Practical Exam 352-011 Question # 3 Topic 1 Discussion

352-011 Exam Topic 1 Question 3 Discussion:
Question #: 3
Topic #: 1

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 can also be at this direct connection The data center provider has only /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 connections fails to 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 without path prepending and the /20 block from the remote data center is sent out with path prepending at both sites


B.

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


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 local preference and the /20 block from the remote data center is sent out with a higher BGP local preference of both sites


D.

BGP will always load-balance the traffic to both data center sites


E.

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


F.

The data center provider must have an additional public IP address block for this routing


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