COMPTIA A+ Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What port number is used for RDP?

8080
443
3389
25

The correct answer is: 3389

RDP, which stands for Remote Desktop Protocol, primarily uses port number 3389 for establishing connections. This protocol allows users to connect to a remote computer over a network, enabling them to access the desktop interface and control the system as if they were sitting in front of it. The selection of port 3389 is standardized, making it the default for RDP communications. As a point of reference, the other port numbers listed serve different functions: 8080 is commonly used for web traffic, particularly for alternative web servers; 443 is designated for secure HTTPS connections; and 25 is traditionally used for SMTP (Simple Mail Transfer Protocol) to send emails. Understanding the specific ports assigned to various protocols is crucial for network configuration and troubleshooting, ensuring that remote connections function correctly.