HPE Aruba Certified Network Security Expert (ACNSX) — Question 10

A network administrator is managing a network that deploys a multicast service. The administrator has multiple streams successfully being routed by PIM-DM in the network. The administrator then adds a new stream with a destination address of 239.0.0.1. However, clients who have not joined the stream are receiving it.
What should the administrator do to fix this problem?

Answer options

• A. Verify that IGMP is enabled between the switches connecting the multicast source and receivers
• B. Change the destination multicast address to 239.1.1.1
• C. Define the 239.0.0.1 stream on the rendezvous point (RP)
• D. Define the 239.0.0.1 stream on the PIM candidate bootstrap router

Correct answer: B

Explanation

The correct answer is B because changing the destination multicast address to an unused address prevents unintended receivers from receiving the stream. Options A, C, and D do not address the issue, as they focus on configurations that do not resolve the problem of clients receiving the stream without joining.