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Q9. Which of the following statements regarding mCAC is false?
A. Multicast CAC allows a service provider to guarantee the availability of mandatory IPTV channels
B. The aim of multicast CAC is to maintain the quality of existing IPTV channels by rejecting new channel joins when required
C. Multicast CAC measures the current bandwidth utilization on the physical links and then decides whether to accept a new channel or not
D. Multicast CAC policy can be applied to VPLS SAP and SDP with IGMP-snooping
Answer: C
Q10. With IGMP snooping enabled, how does a LAN switch identify ports with routers attached?
A. The same way as it identifies receivers
B. From the IGMP Host Membership Reports received
C. From the default gateway address of unicast frames
D. From the IGMP Queries received
E. The switch issues a message on all ports to which only routers respond
Answer: D
Q11. What is the primary function of the RP?
A. It is responsible for sending register messages
B. It is responsible for distributing group mappings
C. It is the place where the source and receivers meet when establishing the initial MDT
D. It is responsible for providing the receiver with the source address
Answer: C
Q12. What is the multicast MAC address for IPv6 multicast address FF1E:: 1234:5678?
A. 33:33:12:34:56:78
B. 33:33:FF:34:56:78
C. 33:33:FE:34:56:78
D. 33:33:FF:FE:56:78
Answer: A
Q13. What is the position of the router shown in the exhibit?
A. The RP
B. The first hop router from the source
C. The router where the Source and Shared Path Trees diverge
D. An upstream router from the diverging router on the Shared Path Tree
Answer: C
Q14. Refer to the exhibit.
What will happen if host 2 issues an IGMP report to join a group?
A. Both Router A and Router B will get this IGMP report and Router B will propagate a PIM join
towards the core network
B. Both Router A and Router B will get this IGMP report and both of them will propagate a PIM join towards the core network
C. Only Router A will get this IGMP report and Router A will propagate a PIM join towards the core network
D. Only Router A will get this IGMP report and as Router A is not PIM DR. so no further action
Answer: A
Q15. What is the signaling protocol used by a multicast receiver?
A. IGMP
B. PIM
C. PIM or IGMP
D. PIM and IGMP are both used by a multicast receiver
E. BSM
Answer: A
Q16. Which statement best describes the impact of an RP failure in a PIM ASM network?
A. All the existing multicast traffic will be stopped immediately as PIM ASM network must have an RP in order to transmit all the multicast traffic
B. The multicast traffic will be impacted, but not immediately. Multicast routers will not discover the RP failure until the timer expires and the multicast traffic flow will be stopped.
C. No impact at all as RP is not required in a PIM ASM network
D. The traffic will not be impacted if the multicast traffic flows have already been established and the traffic flow does not involve the RP in the path
Answer: D