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Implementing Cisco Service Provider Advanced Routing Solutions (SPRI) Questions 66–70 (page: 15)

Updated On: 10-Feb-2026

Which command is used to enable BIDIR-PIM under global configuration mode for Cisco IOS XE Software?

  1. ip pim bidir-enable
  2. ipv4 pim bidir-enable
  3. ip multicast-routing
  4. ip pim bidir

Answer(s): A


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe- 3s/imc-pim-xe-3sbook/imc_basic_cfg.html



In a PIM-SM environment, which mechanism determines the traffic that a receiver receives?

  1. The receiver explicitly requests its desired traffic from the RP on the shared tree.
  2. The receiver explicitly requests traffic from a single source, which responds by forwarding all traffic.
  3. The RP on the shared tree floods traffic out of all PIM configured interfaces.
  4. The receiver explicitly requests traffic from each desired source, which responds by sending all traffic.

Answer(s): D



Which two characteristics unique to SSM when compared to ASM are true? (Choose two.)

  1. It uses SPT switchover
  2. It uses (*,G) exclusively
  3. It uses IGMPv3
  4. It uses RP
  5. It uses (S,G) exclusively

Answer(s): C,E



Refer to the exhibit. Which two commands must the engineer configure for the company’s PIM-SM network to enable Auto-RP mappings to be sent over the FastEthernet0/0 interface, without affecting normal operation? (Choose two.)

  1. enable auto-rp listener
  2. enable sparse-mode
  3. enable Auto-RP announcements
  4. enable sparse-dense mode
  5. enable dense mode

Answer(s): A,B



Which difference should be considered when intradomain or interdomain multicast routing is implemented?

  1. Interdomain multicast routing relies on PIM-DM, and intradomain multicast routing relies on PIM-SM
  2. Interdomain multicast routing uses BIDR-PIM to establish neighbor relationships between AS, and intradomain multicast routing uses MSDP
  3. A network uses intradomain multicast routing without interdomain routing, but networks that use interdomain multicast routing must also apply intradomain routing
  4. Interdomain multicast routing requires an IS-IS or OSPF neighbor relationship between the domains, but intradomain multicast routing requires only BGP

Answer(s): C



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