A many-to-many enterprise messaging application is using multicast as a transport mechanism. As part of the network design for this application, which multicast address should be used, according to best practices outlined in RFC 2365?

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.)

You are the SAN designer for company XYZ. Due to budget constraint, there is increased pressure by management to further optimize server utilization by implementing virtualization technologies on all servers and increase virtual machines density. Faced with some SAN challenges, the server team requests your help in the design and implementation of the SAN in the new virtualized environment. In which two ways can NPIV be used in your proposed design?

A company plans to establish a new network using Cisco Catalyst switches for its multicast applications.
What is the disadvantage when two multicast applications are using the multicast IP addresses 234.17.4.5 and 234.145.4.5 inside the same network?

Which three statements about EIGRP route summarization are correct? (Choose three.)