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PIM Questions

PIM Questions

Question 1
Which statement about the RPF interface in a BIDIR-PIM network is true?
A. In a BIDIR-PIM network, the RPF interface is always the interface that is used to reach the PIM rendezvous point.
B. In a BIDIR-PIM network, the RPF interface can be the interface that is used to reach the PIM rendezvous point or the interface that is used to reach the source.
C. In a BIDIR-PIM network, the RPF interface is always the interface that is used to reach the source.
D. There is no RPF interface concept in BIDIR-PIM networks.

Answer: A
Question 2
Refer to the exhibit.
show_ip_igmp_snooping_mrouter.jpg
Which three statements about the output are true? (Choose three)
A. An mrouter port can be learned by receiving a PIM hello packet from a multicast router.
B. This switch is configured as a multicast router.
C. Gi2/0/1 is a trunk link that connects to a multicast router.
D. An mrouter port is learned when a multicast data stream is received on that port from a multicast router.
E. This switch is not configured as a multicast router. It is configured only for IGMP snooping.
F. IGMP reports are received only on Gi2/0/1 and are never transmitted out Gi2/0/1 for VLANs 10 and 20.

Answer: A B C
Question 3
Which mechanism can be used on Layer 2 switches so that only multicast packets with downstream receivers are sent on the multicast router-connected ports?
A. IGMP snooping
B. Router Guard
C. PIM snooping
D. multicast filtering

Answer: C
Question 4
Refer to the exhibit.
Router#show ip pim tunnel
Tunnel0
Type : PIM Encap
RP : 10.1.100.2*
Source: 10.1.100.2
Tunnel1*
Type : PIM Decap
RP : 10.1.100.2*
Source: –
What is the role of this multicast router?
A. a first-hop PIM router
B. a last-hop PIM router
C. a PIM rendezvous point
D. a PIM inter-AS router

Answer: C
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