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

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 qos­group
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|qos­group destination|source command
F . Enable QPPB on an interface using the ipv4 bgp policy propagation output ip-precedence|qos­group destination|source command

Answer: A,C,E

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