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?
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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Why does HTTPS use port 443 by default?
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What is the difference between HTTP (port 80) and HTTPS (port 443)?
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How does a firewall handle port configurations for HTTPS?