220-801 · Question #797
Which of the following is the default HTTPS port?
The correct answer is D. 443. Port 443 is the default well-known port assigned to HTTPS (HTTP over TLS/SSL) by IANA.
Question
Which of the following is the default HTTPS port?
Options
- A25
- B80
- C110
- D443
How the community answered
(65 responses)- A2% (1)
- B6% (4)
- C3% (2)
- D89% (58)
Why each option
Port 443 is the default well-known port assigned to HTTPS (HTTP over TLS/SSL) by IANA.
Port 25 is the default port for SMTP (Simple Mail Transfer Protocol), used for routing email between mail servers.
Port 80 is the default port for unencrypted HTTP, not the secure HTTPS variant.
Port 110 is the default port for POP3 (Post Office Protocol version 3), used by email clients to retrieve messages from a mail server.
HTTPS uses TCP port 443 by default as assigned by the Internet Assigned Numbers Authority (IANA). This port carries web traffic encrypted via TLS, providing confidentiality and integrity, distinguishing it from unencrypted HTTP which uses port 80.
Concept tested: HTTPS default port number
Source: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml
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