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Q17. Which of the following PIM messages is sent to RP via unicast? 

A. (*, G) Join/Prune 

B. (S, G) Join/Prune 

C. Register 

D. Candidate-RP-Advertisement 

Answer: C 


Q18. What is the embedded RP for group FF7E: 130:2000:2001:2002:2003:: 1000? (The exhibit of 

Group-to-RP Mapping is just for your reference) 

A. 2000:2001:2002:2003::1 

B. 2000:2001:2002:2003::3 

C. 2000:2001:2002::1 

D. 2000:2001:2002::3 

Answer: C 


Q19. How does a Candidate-RP send its information to the BSR? 

A. Using PIM address 224.0.0.13 

B. It is unicast to all the BSR candidates 

C. It is flooded by all PIM routers 

D. It is unicast to the elected BSR 

Answer: D 


Q20. What does the term incongruent unicast and multicast routing refer to? (Choose the best answer) 

A. This is another term for asymmetric routing 

B. This refers to having different routing policies or routing topologies for unicast and multicast networks 

C. This refers to the case when the base routing table imports routes from two different protocols 

D. This refers to the case when unicast and multicast routing tables contain the same route entries 

Answer: B 


Q21. Refer to the following configuration exhibit. 

How many interfaces have receivers joining group 239.1.1.1? 

A. 1 

B. 2 

C. 3 

D. There is insufficient information to answer 

Answer: D 


Q22. Why do RPs configured for anycast RP-set exchange Register messages? 

A. To inform each RP about all of the multicast sources in the domain 

B. There is no need for this. This is purely an optional functionality as described in the anycast RP draft 

C. To inform each RP about all of the multicast enabled receivers 

D. To facilitate the anycast RP election process 

E. None of the above 

Answer: B 


Q23. How often will a host issue IGMP Host Membership Reports for group 224.0.0.1? 

A. Never 

B. 30 seconds 

C. 60 seconds 

D. 120 seconds 

E. 260 seconds 

F. Whenever it receives a Query 

Answer: A 


Q24. When forwarding a multicast frame, the normal behavior for a LAN switch with IGMP snooping enabled is to forward the frame based on the similar rules as if it were: 

A. A unicast frame with a known destination in the forwarding table 

B. A unicast frame with an unknown destination in the forwarding table 

C. A unicast frame with a known source in the forwarding table 

D. A unicast frame with an unknown source in the forwarding table 

Answer: A