A security administrator wishes to implement a secure a method of file transfer when communicating with outside organizations. Which of the following protocols would BEST facilitate secure file transf

SCP (Secure Copy Protocol) uses SSH (port 22) to encrypt both authentication and data during file transfer, providing strong confidentiality and integrity for files transferred between hosts.

TFTP (Trivial File Transfer Protocol) is a simplified, unauthenticated file transfer protocol that transmits data in cleartext with no encryption or access control mechanisms.

SNMP (Simple Network Management Protocol) is a network monitoring and management protocol, not a file transfer protocol, and older versions transmit community strings in cleartext.

FTP (File Transfer Protocol) transmits both credentials and file data in cleartext, making it vulnerable to interception and therefore unsuitable for secure file transfers.

SMTP (Simple Mail Transfer Protocol) is an email transmission protocol and is not designed for direct file transfers; it is used to send email messages, not to facilitate secure bulk file exchange with external organizations.

FTPS (FTP Secure) extends traditional FTP by adding support for TLS/SSL encryption, protecting credentials and file data in transit, making it a secure drop-in replacement for plain FTP when communicating with external organizations.