An engineer must design a VPN solution for a company that has multiple branches connecting to a main office.
What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choosetwo.)

Refer to the exhibit. A network engineer is designing a network for AS100. The design should ensure that all traffic enters AS100 via link 1 unless there is a network failure. In the event of a failure, link 2 should function as the path for incoming traffic. Which solution should the design include?

Refer to the exhibit.

A network engineer must design a multicast solution based on:
* Many-to-many communications between the users and sources
* Support of up to 50 multicast sources
* Users that must register for steams
Which multicast solution must the engineer select?

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 are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?