Which regular expression query modifier function indicates the start of a string?

Refer to the exhibit. An engineer is updating this network to meet these conditions:
- Area 10 will receive inter-area routes and support mutual
redistribution of external routes with the extranet.
- The ::/0 route is prohibited in Area 10.
- Area 11 will receive only the ::/0 route from the ABR.
- External route redistribution is not supported in Area 11.
- The ABR in Area 11 will advertise no interarea routes.
Which two configurations must be performed to meet the requirements? (Choose two.)

Drag and drop the functionalities from the left onto the correct target fields on the right.

Refer to the exhibit.

A network engineer is configuring customer edge routers to finalize a L2VPN over MPLS deployment Assume that the AToM L2VPN service that connects the two CEs is configured correctly on the service provider network Which action causes the solution to fail?

Refer to the exhibit:

Which information is provided for traceback analysis when this configuration is applied?