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Exam 642-887 All Questions

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Exam 642-887 topic 1 question 17 discussion

Actual exam question from Cisco's 642-887
Question #: 17
Topic #: 1
[All 642-887 Questions]

Which three steps are required to configure QPPB on Cisco IOS XR routers? (Choose three.)

  • A. Apply a QPPB route policy to the BGP process using the table-policy command
  • B. Apply a QPPB route policy to the BGP neighbor using the route-policy command
  • C. Define a QPPB route policy to match the customer routes, then set the IP precedence or qos-group
  • D. Define a QPPB route policy to match the customer IP precedence or qos-group markings, then set the BGP community
  • E. Enable QPPB on an interface using the ipv4 bgp policy propagation input ip-precedence|qos-group destination|source command
  • F. Enable QPPB on an interface using the ipv4 bgp policy propagation output ip-precedence|qos-group destination|source command
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Suggested Answer: ACE 🗳️
QoS Policy Propagation via BGP (QPPB), is a mechanism that allows propagation of quality of service (QoS) policy and classification by the sending party based on access lists, community lists and autonomous system paths in the Border Gateway Protocol (BGP), thus helping to classify based on destination instead of source address.
by designtshirt at April 3, 2025, 9 p.m.

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