Helga’s Web server is placed behind her corporate firewall. Currently, her firewall allows only VPN
connections from other remote clients and networks. She wants to open the Internet-facing
interface on her firewall so that it allows all users on the Internet to access her Web server. Which
of the following must Helga’s rule contain?

A.
Instructions allowing all UDP connections with a source port of 80 on the external interface and
a destination port of 1024

B.
Instructions allowing all TCP connections with a source port of 80 on the internal interface and a
destination port of 80

C.
Instructions allowing all UDP connections with a destination port of 80 and a source port of
1024

D.
Instructions allowing all TCP connections with a source port higher than 1024 and a destination
port of 80