4A0-108 Sample Questions & Answers

Refer to the exhibit.Which router is this screen capture taken from? A.Any router in the PIM multicast domainB.Only from the Candidate-RPC.Only from the Candidate-BSRD.Only from the elected BSR

An Alcatel-Lucent 7750 SR is unable to locate a multicast source address in the multicast forwarding table. However, the source address is available in the unicast forwarding table.Which statement best describes the default RPF check behavior of the 7750 SR? A.The RPF check will fail as PIM relies exclusively on the multicast forwarding table by defaultB.The RPF check will not fail, as by default PIM uses the multicast forwarding table first for RPF check, if not found in the multicast forwarding table then refers to unicast forwarding tableC.The RPF check will not fail as PIM uses only the unicast forwarding table by defaultD.The RPF check will fail as the RPF check requires that the source address be present in both the unicast and multicast forwarding tableE.Not enough information is provided to answer the question

Refer to the exhibit.The switch is not igmp-snooping/proxy capable. 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 networkB.Both Router A and Router B will get this IGMP report and both of them will propagate a PIM join towards the core networkC.Only Router A will get this IGMP report and Router A will propagate a PIM join towards the core networkD.Only Router A will get this IGMP report and as Router A is not PIM DR, so no further action

Refer to the configuration exhibit.Which of the following statements is true? A.2 static RP's cannot be configured on the same deviceB.10.10.10.24 will be RP for 230.1.1.1 and 10.10.10.66 will be RP for 234.1.1.1C.10.10.10.24 will be RP for 234.1.1.1 and 10.10.10.66 will be RP for 230.1.1.1D.2 static RP's both with override cannot be configured on the same device

How do the routers in the PIM domain become aware of the address of the elected BSR? A.It is unicast to themB.It is flooded through the network in a bootstrap messageC.It is preconfigured on all routersD.It is flooded through the network in the PIM Hello