N10-005 · Question #607
Which of the following default ports would need to be open on a firewall to allow remote desktop access?
The correct answer is C. 3389. Remote Desktop Protocol (RDP) uses TCP port 3389 by default. RDP is Microsoft's proprietary protocol that allows users to remotely connect to and control a Windows desktop or server. The other ports serve different purposes: port 143 is IMAP (email retrieval), port 443 is HTTPS…
Question
Which of the following default ports would need to be open on a firewall to allow remote desktop access?
Options
- A143
- B443
- C3389
- D8080
How the community answered
(37 responses)- A3% (1)
- B3% (1)
- C86% (32)
- D8% (3)
Explanation
Remote Desktop Protocol (RDP) uses TCP port 3389 by default. RDP is Microsoft's proprietary protocol that allows users to remotely connect to and control a Windows desktop or server. The other ports serve different purposes: port 143 is IMAP (email retrieval), port 443 is HTTPS (secure web traffic), and port 8080 is an alternate HTTP port commonly used by web proxies and development servers. To allow RDP through a firewall, port 3389 must be explicitly permitted.
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