SY0-301 · Question #59
Which of the following is the MOST secure protocol to transfer files?
The correct answer is B. FTPS. FTPS (FTP Secure) wraps FTP communications in TLS/SSL encryption, making it the most secure dedicated file transfer protocol among the options listed.
Question
Which of the following is the MOST secure protocol to transfer files?
Options
- AFTP
- BFTPS
- CSSH
- DTELNET
How the community answered
(53 responses)- A4% (2)
- B87% (46)
- C8% (4)
- D2% (1)
Why each option
FTPS (FTP Secure) wraps FTP communications in TLS/SSL encryption, making it the most secure dedicated file transfer protocol among the options listed.
FTP transmits all data including credentials in plaintext, providing no confidentiality or integrity protection.
FTPS adds TLS (or SSL) encryption to the traditional FTP protocol, protecting both the control channel (credentials) and the data channel (file contents) from interception. Among the choices, it is the only protocol specifically designed for secure file transfer with full channel encryption.
SSH provides a secure encrypted shell session and can facilitate file transfer via SCP or SFTP as sub-protocols, but SSH itself is a remote access protocol, not a dedicated file transfer protocol.
TELNET transmits all data in plaintext and has no encryption, making it one of the least secure protocols for any purpose.
Concept tested: FTPS as a secure file transfer protocol
Source: https://learn.microsoft.com/en-us/iis/configuration/system.applicationhost/sites/site/ftpserver/security/ssl
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