A network administrator is hardening a new web server and must configure the firewall to allow secure web traffic. Which TCP port should the administrator open to allow HTTPS connections by default?
80
143
3389
443
The correct answer is port 443. Hypertext Transfer Protocol Secure (HTTPS) is the standard protocol for secure web communication and uses TCP port 443 by default. Port 80 is used for unencrypted HTTP traffic. Port 143 is the default for Internet Message Access Protocol (IMAP), which is used for email retrieval. Port 3389 is used for Remote Desktop Protocol (RDP).
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