Designing Cisco Enterprise Networks (ENSLD) — Question 64

An engineer must design a solution to provide backup connectivity between two sites. The engineer plans to use an Internet connection, but company policy requires the connection to be encrypted. Additionally, there are several applications that utilize multicast to deliver video streams between the sites. Which technology should the design include?

Answer options

• A. GRE over IPsec
• B. IPsec direct encapsulation
• C. GETVPN
• D. DMVPN

Correct answer: A

Explanation

The correct answer is GRE over IPsec because it allows for secure transmission of multicast traffic, which is essential for video streaming applications. IPsec direct encapsulation does not support multicast traffic, while GETVPN is designed for group traffic but may not be suitable for all multicast scenarios. DMVPN, although flexible, may not provide the specific multicast support needed for this use case.