Refer the exhibit.

Users on a network connected to router R3 report slow speeds when they connect to the server connected to R2. After analyzing traffic on the network, a network engineer identified congestion on the link between R2 and R3 as the cause. Which QoS service must the engineer implement to drop traffic on the link when it exceeds a configured threshold?

Drag and drop the SG KAN architecture types from the bottom next to the corresponding topologies on the right.

Refer to the exhibit.

Refer to the exhibit. A junior network engineer has been configuring OSPF on two directly connected routers, R1 and R2, to establish a neighbor adjacency. The engineer also configured ip route 10.1.1.0 255.255.255.0 GigabitEthernet 0/1 10.10.10.1 on R1 to allow inbound management. After the initial configuration, the adjacency failed to form. The engineer changed the cost and area type under the OSPF configuration on R1, but the problem persists. Which action must the engineer take to resolve the issue?

A mod-size service provider uses L2VPN as its standard for connectivity between offices. A small company wants the service provider to connect the company's two sites across the service provider core. To meet service requirements, the service provider must extend the layer 2 domain between the company's two locations. Which configuration must the engineer apply to implement an attachment circuit between the two sites using a VLAN tag of 12?

Refer to the exhibit.

The network engineer is performing end-to-end MPLS path testing with these conditions:
* Users must perform MPLS OAM for all available same-cost paths from R1 to R4.
* Traceroute operations must return all of the next-hop IP details.
Which configuration meets these requirements?