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200-301 · Question #1054
200-301 Question #1054: Real Exam Question with Answer & Explanation
The correct answer is D: Uses two separate connections for control and data traffic. FTP (File Transfer Protocol) operates by establishing two distinct TCP connections: one for control commands and another for the actual data transfer.
Submitted by valeria.br· Mar 5, 2026IP Services
Question
What is the function of FTP?
Options
- AAlways operated without user connection validation
- BUses block number to identify and mitigate data-transfer errors
- CRelies on the well-known UDO port 69 for data transfer
- DUses two separate connections for control and data traffic
Explanation
FTP (File Transfer Protocol) operates by establishing two distinct TCP connections: one for control commands and another for the actual data transfer.
Common mistakes.
- A. FTP requires user authentication (username and password) for connection validation unless explicitly configured for anonymous FTP, making 'always operated without user connection validation' incorrect.
- B. This describes a characteristic of TFTP (Trivial File Transfer Protocol), which uses block numbers for error detection and retransmission over UDP, not FTP.
- C. FTP uses well-known TCP ports 20 and 21, not UDP port 69, which is associated with TFTP.
Concept tested. FTP connection characteristics
Reference. https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/standard-ports-ftp-service
Topics
#FTP#Application Layer Protocols
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