Which data center architecture is open, flexible, and uses Layer 3 only?

Exhibit.

Referring to the exhibit, which two statements are true? (Choose two)

You want to reduce the over-subscription ratio of an IP fabric between the leaf nodes and spine nodes.
Which two actions will accomplish this goal? (Choose two.)

You must implement high availability features in the design for a data center Every network device in this design will have dual routing engines In this scenario, which two high availability features should you use? (Choose two )

Exhibit.

For a fully configured and functional IP fabric underlay as shown in the exhibit how many external BGP neighbors are expected to be in established state for Leaf 1?