CompTIA
CV0-003 · Question #389
CV0-003 Question #389: Real Exam Question with Answer & Explanation
The correct answer is B: 22. SFTP (SSH File Transfer Protocol) operates over SSH on port 22, not on the traditional FTP port 21.
Operations
Question
A network administrator is enabling SFTP. Which of the following ports should be open on the firewall?
Options
- A21
- B22
- C80
- D443
Explanation
SFTP (SSH File Transfer Protocol) operates over SSH on port 22, not on the traditional FTP port 21.
Common mistakes.
- A. Port 21 is the control channel for traditional FTP, which is an entirely separate protocol from SFTP and does not provide encryption.
- C. Port 80 is used for unencrypted HTTP web traffic and has no association with file transfer via SFTP.
- D. Port 443 is used for HTTPS (TLS-encrypted web traffic) and is not related to SFTP or SSH-based file transfer.
Concept tested. SFTP protocol port and SSH relationship
Reference. https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml
Topics
#SFTP#firewall ports#SSH#network protocols
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