Which two statements are true about the Cisco Classic （CBAC） IOS Firewall set？（）

• A、It can be used to block bulk encryption attacks
• B、It can be used to protect against denial of service attacks
• C、Traffic originating from the router is considered trusted， so it is not inspected
• D、Based upon the custom firewall rules， an ACL entry is statically created and added to theexisting ACL permanently
• E、Temporary ACL entries that allow selected traffic to pass are created and persist for theduration of the communication session