Exam PCNSE topic 1 question 411 discussion

Actual exam question from Palo Alto Networks's PCNSE

Question #: 411
Topic #: 1

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?

A. IGMP
B. SSM
C. BFD
D. PIM

Show Suggested Answer

Suggested Answer: D 🗳️

by chrisy042 at Nov. 25, 2022, 7:19 p.m.

Comments

Submit Cancel

chrisy042

Highly Voted 2 years, 1 month ago

Selected Answer: D

You must enable IP multicast for the virtual router, configure Protocol Independent Multicast (PIM) on the ingress and egress interfaces, and configure Internet Group Management Protocol (IGMP) on receiver-facing interfaces. https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-networking-admin/ip-multicast/configure-ip-multicast

upvoted 10 times

...

djedeen

Highly Voted 2 years ago

Selected Answer: D

The nuance to this question is thus: to 'forward mcast traffic' (actual question) requires PIM, but for a receiver to join a group (different than the actual question) requires IGMP.

upvoted 7 times

...

Marshpillowz

Most Recent 11 months, 1 week ago

Selected Answer: D

D is correct

upvoted 1 times

...