A company has made the decision to host their own email and basic web services. The
administrator needs to set up the external firewall to limit what protocols should be allowed to get
to the public part of the company’s network. Which ports should the administrator open?
(Choose three.)

A.
Port 22

B.
Port 23

C.
Port 25

D.
Port 53

E.
Port 80

F.
Port 139

G.
Port 445