Explore the role of Https in Secure Communication over the internet. Learn about TCP port 443, the default port for HTTPS, in our comprehensive guide for the Cisco 200-901 certification exam.

Question

Which TCP port is used by default for HTTPS?

A. 53
B. 80
C. 143
D. 443

Answer

D. 443

Explanation

The correct answer is D. 443. HTTPS (Hypertext Transfer Protocol Secure) is an internet communication protocol that protects the integrity and confidentiality of data between the user’s computer and the site. Users expect a secure and private online experience when using a website. We adopt HTTPS to fulfill these expectations.

HTTPS is used for secure communication over a computer network, and is widely used on the Internet. It is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security (TLS) or its predecessor, Secure Sockets Layer (SSL). The main motivation for HTTPS is authentication of the visited website and protection of the privacy and integrity of the exchanged data while in transit. It protects against man-in-the-middle attacks. The bidirectional encryption of communications between a client and server protects against eavesdropping and tampering of the communication.

Cisco 200-901 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Cisco 200-901 exam and earn Cisco 200-901 certification.

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