A company would like their technicians to be able to connect to employee desktops remotely via RDP. Which of the following default port numbers need to be opened on the firewall to support this?

The correct answer is C. 3389. Remote Desktop Protocol (RDP) uses TCP port 3389 by default. This port must be open on the firewall for technicians to establish RDP sessions to employee desktops. The other ports serve different services: 143 is IMAP (email retrieval), 443 is HTTPS (secure web traffic), and…

Network security

Question

Options

A143
B443
C3389
D8080

How the community answered

(14 responses)

A
7% (1)
B
7% (1)
C
86% (12)

Explanation

Remote Desktop Protocol (RDP) uses TCP port 3389 by default. This port must be open on the firewall for technicians to establish RDP sessions to employee desktops. The other ports serve different services: 143 is IMAP (email retrieval), 443 is HTTPS (secure web traffic), and 8080 is an alternate HTTP port commonly used by web proxies or development servers.

Topics

#RDP#port 3389#firewall rules#remote desktop

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