Which additional feature does MPLS DiffServ tunneling support?

Refer to the exhibit.

Which task completes the configuration?

Refer to the exhibit. If router RA is configured as shown, which IPv4 multicast address space does it use?

Refer to the exhibit. A network engineer is implementing OSPF multiarea.
Which command on interface GO/1 resolves adjacency issues in the new area?

Refer to the exhibit.

Guidelines
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This is a lab item in which tasks will be performed on virtual devices.
* Refer to the Tasks tab to view the tasks for this lab item.
* Refer to the Topology tab to access the device console(s) and perform the tasks.
* Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
* All necessary preconfigurations have been applied.
* Do not change the enable password or hostname for any device.
* Save your configurations to NVRAM before moving to the next item.
* Click Next at the bottom of the screen to submit this lab and move to the next question.
* When Next is clicked, the lab closes and cannot be reopened.
Topology

Tasks
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R1 and R2 are having issues forming an eBGP neighbor relationship. Troubleshoot and resolve the issue to achieve these goals:
1. Configure R1 and R2 to form a BGP neighborship using their Loopback interfaces.
2. Form the neighbor relationship using a BGP multihop mechanism. Use minimal values to solve the issue.