(ISC)2 Certified in Cybersecurity Practice Exam

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Prepare for the (ISC)2 Certified in Cybersecurity Exam with comprehensive quizzes and extensive question banks. Enhance your skills with detailed explanations and practice tests designed to improve your expertise for the certification exam. Get exam-ready now!

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What is port 80 used for?

HTTP
HTTPS
FTP
RDP

The correct answer is: HTTP

Port 80 is primarily used for HTTP, which stands for Hypertext Transfer Protocol. This protocol is the foundation of data communication on the World Wide Web, allowing web browsers and servers to communicate. When you access a website using an address beginning with "http://", your browser is using port 80 by default to request and receive web pages from the server. HTTP operates on the application layer of the Internet protocol suite and handles the transfer of text, graphics, sound, video, and other multimedia content over the internet. It is an essential protocol for the browsing experience because it enables users to retrieve web resources efficiently. In contrast, the other options represent different protocols and use different ports: HTTPS uses port 443 (securing HTTP with SSL/TLS), FTP uses port 21 (for file transfer), and RDP uses port 3389 (for remote desktop connections). Understanding the specific purpose of each port is crucial for network and internet protocols management.