COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK SECURITY AND CYBERSECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What port number is HTTPS (Hyptertext Transfer Protocol Secure)?
A
tcp 161
B
tcp 80
C
tcp 22
D
tcp 443
Explanation: 

Detailed explanation-1: -It uses port 443 by default, whereas HTTP uses port 80.

Detailed explanation-2: -HTTPS is secure and is on port 443, while HTTP is unsecured and available on port 80. Information that travels on the port 443 is encrypted using Secure Sockets Layer (SSL) or its new version, Transport Layer Security (TLS) and hence safer.

Detailed explanation-3: -Port 443. The Internet Engineering Task Force (IETF) recognizes the TCP port number 443 as the default HTTPS protocol. It provides an encryption algorithm for exchanging information between web servers and browsers. HTTPS port 443 works by securing network traffic packets before the data transmission occurs.

Detailed explanation-4: -Port 433: Used with Hypertext Transfer Protocol Secure (HTTPS) and is an extension of HTTP and runs on SSL. Port 25: Used with Simple Mail Transfer Protocol (SMTP) to route emails. Port 53: Used by Domain Name System (DNS) services as an array of communication.

Detailed explanation-5: -What is the Difference Between HTTPS Port 443 and Port 8443? The key difference between HTTPS port 443 and port 8443 is that Apache Tomcat uses 8443 to open SSL text service to avoid conflicts, whereas 443 is a web browsing port meant to secure data transmission between web browsers and servers.

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