Your boss， Miss ，is interested in CEF.  What should you tell her？ （）

• A、The FIB lookup is based on the Layer 3 destination address prefix （shortest match）.
• B、The adjacent table is derived from the ARP table.
• C、The FIB table is derived from the IP routing table.
• D、When the adjacency table is full， a CEF TCAM table entry points to the Layer 3 engine to redirect the adjacency.
• E、CEF IP destination prefixes are stored in the TCAM table， from the least specific to the most specific entry.
• F、When the CEF TCAM table is full， packets are dropped.