What are two enhancements in WCCP V2.0 over WCCP V1.0? (Choose two.)

A.
support for HTTP redirection

B.
multicast support

C.
authentication support

D.
IPv6 supportE. encryption support

Explanation:
WCCP V2.0 supports the following enhancements to the WCCP V1.0 Protocol:
* Multi-Router Support.
WCCP V2.0 allows a farm of web-caches to be attached to more than one router.
* Multicast Support.
WCCP V2.0 supports multicasting of protocol messages between web-caches and
routers.
* Improved Security.
WCCP V2.0 provides optional authentication of protocol packets received by webcaches and routers.
* Support for redirection of non-HTTP traffic.
WCCP V2.0 supports the redirection of traffic other than HTTP traffic through the
concept of Service Groups.
* Packet return.
WCCP V2.0 allows a web-cache to decline to service a redirected packet and to return
it to a router to be forwarded. The method by which packets are returned to a router is
negotiable.
https://tools.ietf.org/id/draft-wilson-wrec-wccp-v2-01.txt