Which two statements about Protocol Independent Multicast (PIM) are true? (Choose two.)

Which two statements about Protocol Independent Multicast (PIM) are true? (Choose two.)

• PIM does not require an IGP protocol to be configured in the network.
• PIM should be configured only on the first and the last hop routers in the multicast tree.
• PIM should be configured on the device that hosts the source of the muticast traffic.
• PIM sparse mode is most useful when there are few senders, many receivers, and the volume of multicast traffic is high.
• PIM is a multicast routing protocol that makes packet-forwarding decisions independent of the unicast IP routing protocol that is running in the network.
• Three of the forwarding modes for PIM are PIM dense mode (PIM-DM), PIM sparse mode (PIM-SM), and PIM sparse-dense mode.

Explanation: PIM is a multicast routing protocol that routes multicast traffic between network segments by creating distribution trees. It makes packet-forwarding decisions independent of the unicast IP routing protocol that is running in the network. There are five operating PIM modes:

PIM dense mode (PIM-DM)

PIM sparse mode (PIM-SM)

PIM sparse dense Mode

PIM source specific multicast (PIM-SSM)

PIM bidirectional mode (Bidir-PIM)

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