Which three statements about NetFlow version 9 are correct? (Choose three.)
A. It is backward-compatible with versions 8 and 5.
B. Version 9 is dependent on the underlying transport; only UDP is supported.
C. A version 9 export packet consists of a packet header and flow sets.
D. Generating and maintaining valid template flow sets requires additional processing.
E. NetFlow version 9 does not access the NetFlow cache entry directly.
