A network administrator is asked to send a large file containing PII to a business associate.
Which of the following protocols is the BEST choice to use?

A.
SSH

B.
SFTP

C.
SMTP

D.
FTP

Explanation:
SFTP encrypts authentication and data traffic between the client and server by making use of SSH to
provide secure FTP communications. As a result, SFTP offers protection for both the authentication traffic
and the data transfer taking place between a client and server.
Incorrect Answers:
A: SSH is employed by SFTP.
C: SMTP is the email-forwarding protocol used on the Internet and intranets.
D: Standard FTP does not provide any confidentiality protection because it sends all data in the clear.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 49, 50