Designing Cisco Network Service Architectures (ARCH, legacy) — Question 7
What are two methods of ensuring that the multicast RPF check passes without changing the unicast routing table? (Choose two.)
Answer options
- A. disabling the interface of the router back to the multicast source
- B. disabling BGP routing protocol
- C. implementing MBGP
- D. implementing OSPF routing protocol
- E. implementing static mroutes
Correct answer: A, E
Explanation
The correct answers are A and E. Disabling the interface back to the multicast source prevents the router from using that path for multicast traffic, thereby allowing the RPF check to pass. Implementing static mroutes allows for the manual configuration of multicast routes without affecting the unicast routing table. Options B, C, and D are incorrect because they do not directly relate to modifying the multicast routing behavior independent of the unicast routing table.