JNCIP-ENT: Juniper Networks Certified Professional – Enterprise Routing (2022) — Question 8

Your network provider supports multicast traffic but your provider network does not. You want to allow multicast hosts outside of your network to receive multicast traffic sourced within your network.
How would you satisfy this requirement?

Answer options

• A. Use MSDP peering with your provider.
• B. Use AutoVPN to connect to the remote hosts.
• C. Use an MP-BGP session to your provider to pass multicast traffic.
• D. Use automatic multicast tunnel gateway at the edge of your network.

Correct answer: D

Explanation

The correct answer is D because an automatic multicast tunnel gateway can encapsulate multicast traffic for delivery over unicast networks, enabling external hosts to receive multicast packets. Options A and C are incorrect as they pertain to methods involving peering and BGP sessions which are not designed to address the issue of transmitting multicast traffic through a non-multicast supporting network. Option B is also not relevant as AutoVPN is primarily for secure site-to-site connections rather than multicast transmission.