Policy-based routing allows network administrators to implement routing policies to allow or deny
paths based on all of these factors except which one?

A.
End system

B.
Protocol

C.
Application

D.
Throughput

Explanation:
Policy-based routing (PBR) provides a mechanism for expressing and implementing
forwarding/routing of data packets based on the policies defined by the network administrators. It
provides a more flexible mechanism for routing packets through routers, complementing the
existing mechanism provided by routing protocols.
Policy-based routing allows network administrators to determine and implement routing policies to
allow or deny paths based on the following:
• Identity of a particular end system
• Application
• Protocol
• Size of packets