Community QuestionSeen on 9 CBTs

Remote Desktop Protocol (RDP)

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Answer

TCP/UDP 3389

4 of 9 indexed CBT versions give this answer·Answer index rebuilt Aug 16, 2026

The indexed versions don't agree on this one

This question appears on 9 CBT versions we've indexed, and they don't all give the same answer. Exam editions change and answer keys get re-cut, so more than one of these was correct on the test it came from. Here is each of them, and how many versions give it.

4 of 9 versionsmost versions

TCP/UDP 3389

Comptia A+ Port Numbers · Comptia Port Numbers · Comptia Ports · +1 more

2 of 9 versions

An underlying protocol that supports Microsoft Remote Desktop.

Comptia A+ Free Study Guide · Comptia A+ Material

1 of 9 version

Allows a user to control a networked computer software referred to as either: Remote Desktop Connection (RDC) or Terminal Services Client (TSC) Port should always be blocked by the firewall rule for inbound traffic Server listens by default on TCP port 3389

Comptia Security+ Study Guide

1 of 9 version

A communications method for transferring data between computers on the Internet

Mike Meyers Comptia Videos

1 of 9 version

Microsoft remote access; TCP port 3389

When Does Comptia Security+ 601 Expire

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