CompTIA
CV0-003 · Question #346
CV0-003 Question #346: Real Exam Question with Answer & Explanation
The correct answer is B: 443. HTTPS (HTTP over SSL/TLS) uses port 443 by default, providing encrypted communication between web clients and servers.
Security
Question
When the protocol HTTP is transmitted over SSL, which of the following ports is used by default?
Options
- A80
- B443
- C448
- D8080
Explanation
HTTPS (HTTP over SSL/TLS) uses port 443 by default, providing encrypted communication between web clients and servers.
Common mistakes.
- A. Port 80 is the default port for unencrypted HTTP traffic, not for HTTP secured with SSL/TLS.
- C. Port 448 is not a standard or well-known port assigned to HTTPS or any common secure web protocol.
- D. Port 8080 is a common alternative port for plain HTTP traffic and development servers, not the default for SSL-encrypted HTTP.
Concept tested. HTTPS default port number
Reference. https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml
Topics
#HTTPS#SSL/TLS#port 443#network protocols
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