Cisco IOS XR software is partitioned into three planes: control, data, and management. Which
three of these belong to the data plane? (Choose three.)

A.
XML

B.
RIB

C.
FIB

D.
QoS

E.
PFI

Explanation:
(FIB, QoS, PFI). RIB is part of control plane
1.4. SP high end product
Cisco IOS XR Software is partitioned into three planes:
Control: Distributes routing tasks and management of the routing information base (RIB) to
participating RPs; different routing processes can be running on different physical units.
DatA. Maintains the forwarding information base (FIB) changes across the participating nodes,
letting the router perform as a single forwarding entity.
Management: Controls the operation of the router as a single networking element.