Palo Alto Networks Certified Network Security Engineer (PCNSE) — Question 299

A network security engineer configured IP multicast in the virtual router to support a new application. Users in different network segments are reporting that they are unable to access the application.

What must be enabled to allow an interface to forward multicast traffic?

Answer options

• A. IGMP
• B. SSM
• C. BFD
• D. PIM

Correct answer: D

Explanation

The correct answer is D, PIM (Protocol Independent Multicast), which is essential for routing multicast traffic across different network segments. Options A (IGMP) and B (SSM) are related to multicast but do not handle the actual routing of multicast traffic, while C (BFD) is used for detecting faults in the network and does not pertain to multicast traffic forwarding.