N10-005 Question #305: Real Exam Question with Answer & Explanation

The correct answer is A: RDP. Remote Desktop Protocol (RDP) uses TCP port 3389 by default. RDP is a Microsoft protocol that allows users to remotely connect to and control a Windows desktop over a network. It is commonly used for remote administration and remote work. TFTP (B) uses UDP port 69 for trivial fil

Question

Which of the following protocols uses port 3389 by default?

Options

ARDP
BTFTP
CIMAP
DDNS

Explanation

Remote Desktop Protocol (RDP) uses TCP port 3389 by default. RDP is a Microsoft protocol that allows users to remotely connect to and control a Windows desktop over a network. It is commonly used for remote administration and remote work. TFTP (B) uses UDP port 69 for trivial file transfers. IMAP (C) uses TCP port 143 (or port 993 for IMAPS/encrypted) for retrieving email from a mail server. DNS (D) uses UDP/TCP port 53 for domain name resolution. Port number memorization is heavily tested on networking certifications like CompTIA Network+.

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