CompTIA A+ Core 1 (220-1201)NetworkingEasy
A network administrator is configuring a new firewall to protect the internal network. The administrator needs to ensure that only secure web traffic is allowed to pass through to an internal server. Which TCP port should be explicitly opened for this service?
- A3389
- B80
- C443
- D21
Show answer & explanationAnswer & explanation
Correct answer: C. 443
Secure web traffic, which uses HTTPS (Hypertext Transfer Protocol Secure), operates over TCP port 443. Opening this port on the firewall allows encrypted web communication to reach the internal server.
Why the other options are wrong
- A. Port 3389 is used for RDP (Remote Desktop Protocol), which is for remote desktop access, not secure web traffic.
- B. Port 80 is used for HTTP (Hypertext Transfer Protocol), which is unencrypted web traffic, not secure web traffic.
- D. Port 21 is used for FTP (File Transfer Protocol), which is for file transfers, not secure web traffic.
HTTPS Port 443
HTTPS (Hypertext Transfer Protocol Secure) is the secure version of HTTP, using SSL/TLS encryption, and operates over TCP port 443.
- Provides encrypted communication over a computer network.
- Commonly used for secure web browsing and online transactions.
- Ensures data integrity and confidentiality.
Memory trick: Secure Web's Forte is Port 443, for HTTPS, you see!