| 1: | What global Cisco IOS Software command is required to enable IP multicast routing?
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| 2: | Show the commands that enable PIM on an interface in dense mode, sparse mode, and sparse-dense mode.
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| 3: | Show the command to statically specify an RP with an address of 172.18.20.4.
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| 4: | Write the configuration statements necessary to statically map groups 239.1.2.3 and 228.1.8.0 through 228.1.8.255 to RP 192.168.15.5, and group 239.6.7.8 to RP 192.168.20.10. Map all other groups to RP 192.168.25.1.
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| 5: | All router interfaces shown in Figure 6-11 are running in sparse-dense mode. Show the relevant configurations in order for R1 to be the RP for only groups whose addresses begin with 226.13.0.0/24. R2 should only be the RP for groups whose addresses begin with 239.0.0.0/8. R3 is the mapping agent; ensure that the mapping agent will recognize only R1 and R2 as RPs, and only for the specified groups. All Auto-RP messages should have a TTL of 20. 
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| 6: | Given the configurations of Configuration Exercise 5, suppose a source originates traffic for group 228.23.14.135, and a member requests a join to that group. What will happen?
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| 7: | Again referring to Figure 6-11, write the necessary configurations to enable the bootstrap protocol, making R1 and R2 C-RPs for the same group addresses described in Configuration Exercise 5. Make R3 the BSR, and make R4 a backup BSR.
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| 8: | Write configurations for the topology in Figure 6-11 that allow multicast load balancing between source 172.16.1.75 and group member 172.16.2.100. Use unnumbered addressing on the tunnel interfaces, referencing E0, and assume the IGP is advertising those addresses.
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| 9: | Examine the configurations of Homburg and Porkpie shown in the case study "Multicast Load Sharing." Each router is running OSPF in passive mode on the tunnel interfaces. Why?
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| 10: | What is the purpose of the command ip pim spt-threshold 100 group-list 25?
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