What should you do If you are looking at a strategic win with a customer and the customer wants to examine Cisco ISE for longer than a few weeks?

A company's security policy requires that all connections between sites be encrypted in a manner that does not require maintenance of permanent tunnels. The sites are connected through a private MPLS-based service that uses a dynamically changing key and spoke-to-spoke communication. Which type of transport encryption must be used in this environment?

An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology.
The network will support an engineering environment where it is necessary for end users to connect their own network switches for testing purposes. Which feature should the architect include in the design to ensure the spanning tree topology is not affected by these rogue switches?

Drag and drop the characteristics from the left onto the correct telemetry mode on the right.

An engineer is designing a QoS policy that queues excess packets for later transmission.
Which mechanism must be included in the design?