A network engineer must connect two sites across a public network using a secure tunneling technology that supports multicast traffic. Which technology must be chosen?

Refer to the exhibit. A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface g.g0/0. Which solution must the architect include in the design?
A customer has several remote sites connected with their headquarters through microwave links. An engineer must propose a backup WAN solution based on these conditions:
Which backup WAN link type the engineer recommend?
How is sub-second failure of a transport link detected in a Cisco SD-WAN network?
An architect is designing how the company will manage the infrastructure of a large data center. The company wants to group device types for security reasons and mitigate DoS attacks. The company also wants to ensure that access to the rest of the production network is not possible if one device is compromised on the management plane. Which solution must the architect choose?