Which two of the following are true regarding the BGP Prefix-Based outbound route filtering
feature? (Choose two.)

A.
IP multicast routes are not supported.

B.
Outbound route filtering is configured only on a per-address family basis.

C.
Outbound route filtering can be configured for either iBGP or eBGP sessions.

D.
The outbound route filter can be defined in a Prefix list, Distribute list or Access lists.

E.
Outbound route filtering is more effective when a distance vector IGP is used.

Explanation:

http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fsbgporf.pdf
Restrictions for BGP Prefix-Based Outbound Route Filtering
• The BGP Prefix-Based Outbound Route Filtering feature does not support IP multicast routes.
• IP addresses that are used for outbound route filtering must be defined in an IP prefix-list. BGP
distribute lists and IP access lists are not supported.
• Outbound route filtering is configured on only a per-address family basis and cannot be
configured under the general session or BGP routing process (Router(config-router)#).
• Outbound route filtering is configured for only external peering sessions.