What does the following access list, which is applied on the external interface FastEthernet 1/0 of
the perimeter router, accomplish?
router(config)#access-list 101 deny ip 10.0.0.0 0.255.255.255 any log
router (config)#access-list 101 deny ip 192.168.0.0 0.0.255.255 any log
router (config)#access-list 101 deny ip 172.16.0.0 0.15.255.255 any log
router (config)#access-list 101 permit ip any any
router (config)#interface fastEthernet 1/0
router (config-if)#ip access-group 101 in

A.
It prevents incoming traffic from IP address ranges 10.0.0.0-10.0.0.255, 172.16.0.0-
172.31.255.255, 192.168.0.0-192.168.255.255 and logs any intrusion attempts.

B.
It prevents the internal network from being used in spoofed denial of service attacks and logs
any exit to the Internet.

C.
It filters incoming traffic from private addresses in order to prevent spoofing and logs any
intrusion attempts.

D.
It prevents private internal addresses to be accessed directly from outside.