CompTIA
220-801 · Question #784
220-801 Question #784: Real Exam Question with Answer & Explanation
The correct answer is D: HTTPS. Port 443 is the well-known port number assigned to HTTPS, the secure version of HTTP that uses TLS/SSL encryption.
Question
Traffic coming across port 443 is for which of the following protocols?
Options
- ASFTP
- BFTP
- CHTTP
- DHTTPS
Explanation
Port 443 is the well-known port number assigned to HTTPS, the secure version of HTTP that uses TLS/SSL encryption.
Common mistakes.
- A. SFTP (SSH File Transfer Protocol) uses port 22, which is the same port as SSH, not port 443.
- B. FTP (File Transfer Protocol) uses ports 20 (data) and 21 (control) for unencrypted file transfers.
- C. HTTP (Hypertext Transfer Protocol) uses port 80 for unencrypted web traffic, not port 443.
Concept tested. Well-known port number for HTTPS
Reference. https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml
Community Discussion
No community discussion yet for this question.