
Refer to the exhibit. An architect must design an OSPF solution for an enterprise customer. The design must meet these requirements:
Limit the link flap impact to Area-1 and Area-2.
Any link failure must have minimal impact on voice and video traffic.
Which two OSPF solutions must the architect include in the design? (Choose two.)
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.

Refer to the exhibit. An architect must create a stable and scalable EIGRP solution for a customer. The design must:
* conserve bandwidth, memory, and CPU processing
* prevent suboptimal routing
* avoid any unnecessary queries
Which two solutions must the architect select? (Choose two.)
A company must automate a set of complex changes aligned with DR testing in the network. These changes are specific, and the DR playbook will be adjusted in the future. The playbook has diverse routing and switching assets in scope as well as multiple vendor and hardware platforms. A developer will create a thin, web front-end microservice and integrate with an Open daylight controller to push changes to the network. Which YANG model should be used?