You are a server administrator at a small company. Company policy dictates that all remote connections must be encrypted and accessed using some form of authentication. Which of the following will allow a user to upload a large file from home, while adhering to company policy?
SFTP (SSH File Transfer Protocol) is the correct answer. It is a network protocol specifically designed for secure file transfers over a reliable data stream, such as SSH, which provides the required encryption and authentication.
FTP is incorrect because it is an inherently insecure protocol that transmits credentials and data in cleartext.
SMTP is the protocol for sending email and is not used for this type of file transfer.
While SSH provides the secure and authenticated channel, SFTP is the protocol that runs over SSH to perform file management and transfers, making it the most complete answer to the scenario.
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