220-801 Question #250: Real Exam Question with Answer & Explanation

The correct answer is C: 3389. Remote Desktop Protocol (RDP) uses TCP port 3389 by default for remote graphical desktop connections.

Question

Which of the following is the valid port for remote desktop protocol?

Remote Desktop Protocol (RDP) uses TCP port 3389 by default for remote graphical desktop connections.

Common mistakes.

A. Port 110 is assigned to POP3 (Post Office Protocol version 3), used for retrieving email from a mail server, not remote desktop access.
B. Port 443 is assigned to HTTPS (HTTP over TLS/SSL), used for secure web traffic, not remote desktop sessions.
D. Port 8080 is a common alternate port for HTTP web traffic or proxy services, not the RDP protocol.

Concept tested. RDP default port number identification

Reference. https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/understanding-remote-desktop-protocol

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