You recently added your autonomous system to an existing BGP confederation. You notice that a
route that had a local preference of 100 now has a local preference of 50. Which statement
explains the change?

A.
BGP path attributes such as next hop, local preference, and MED are normally restricted to a
single AS but are allowed to propagate throughout the confederation’s AS members.

B.
The confederation has sub-ASs that require all IBGP routes to have a local preference of 50 or
below.

C.
When your Junos devices joined the confederation, they lost IBGP connectivity to the route in
question; the local preference reverted to 50 once the BGP peering established.

D.
The route is being shared through an EBGP peer, and the confederation is propagating the
local preference from the peer.

Explanation: