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Which three components are included in the Cisco IOS XR infrastructure?

Which three components are included in the Cisco IOS XR infrastructure? (Choose three.)

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A.
modular line cards

B.
shelf controllers

C.
route processors

D.
service processors

E.
distributed service cards

Explanation:
1.4. SP high end product
1.4.01. IOS-XR structure
Distributed Infrastructure
The kernel is replicated across the router infrastructure. The services and client applications can
be distributed across the router infrastructure. The infrastructure includes route processors (RPs),
distributed route processors (DRPs), service processors (SPs), shelf controllers (SCs), modular
service cards (MSCs), and line cards (LCs).


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