Which two actions of Cisco IOS Software prevent a DDOS attack? (Choose two.)
A. Filter all source addresses from which traffic is not expected in the network, including RFC 1918 addresses.
B. Filter all traffic for TCP ports in the range 1014-49151.
C. Enable BFD to have links taken down when there is an attack.
D. Enable the ip verify reverse-path command on the interface.
E. Allow only static routes; dynamic routing protocols should not be allowed.
