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An organization recently switched from a cloud-based email solution to an in-house email server. The firewall needs to be modified to allow for sending and receiving email. Which of the following ports should be open on the firewall to allow for email traffic? (Select THREE).
A. TCP 22
B. TCP 23
C. TCP 25
D. TCP 53
E. TCP 110
F. TCP 143
G. TCP 445
Correct Answer: CEF Explanation
A new web server has been provisioned at a third party hosting provider for processing credit card transactions. The security administrator runs the netstat command on the server and notices that ports 80, 443, and 3389 are in a ‘listening’ state. No other ports are open. Which of the following services should be disabled to ensure secure communications?