220-801 · Question #807
Which of the following is the MOST common secure web server port?
The correct answer is D. 443. Port 443 is the standard port for HTTPS, which is the secure version of HTTP using TLS/SSL encryption. It is the universally accepted port for secure web server communication.
Question
Options
- A22
- B80
- C110
- D443
How the community answered
(25 responses)- B4% (1)
- C4% (1)
- D92% (23)
Why each option
Port 443 is the standard port for HTTPS, which is the secure version of HTTP using TLS/SSL encryption. It is the universally accepted port for secure web server communication.
Port 22 is assigned to SSH (Secure Shell), which is used for secure remote command-line access and tunneling, not web server communication.
Port 80 is assigned to standard HTTP, which transmits data in plaintext and is not considered a secure protocol.
Port 110 is assigned to POP3 (Post Office Protocol version 3), which is used for retrieving email from a mail server.
Port 443 is assigned by IANA to HTTPS (HTTP over TLS/SSL) and is the default port all web browsers use when connecting to a secure website. The TLS handshake and all subsequent data are encrypted, making it the most common secure web server port.
Concept tested: HTTPS port 443 and secure web communication
Source: https://learn.microsoft.com/en-us/iis/manage/configuring-security/how-to-set-up-ssl-on-iis
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