Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 75

What causes multicast traffic to permanently stay on the shared tree and not switch to the source tree?

Answer options

• A. SSM range is being used
• B. The RP announcements are being filtered
• C. The SPT threshold is set to infinity
• D. The RP IP address is configured incorrectly

Correct answer: C

Explanation

The correct answer is C because setting the SPT threshold to infinity prevents the multicast traffic from switching to the source tree. Options A and B do not directly influence the traffic's ability to switch trees, while D addresses a misconfiguration that would not inherently cause the traffic to remain on the shared tree.