Which protocol’s primary function is to facilitate file and directory transfer between two machines?

A.
Telnet.

B.
File Transfer Protocol (FTP).

C.
Trivial File Transfer Protocol (TFTP).

D.
Simple Mail Transfer Protocol (SMTP)

Explanation:
FTP is a network application that supports an exchange of files between computers, and that requires
anonymous or specific authentication.
Incorrect Answers:
A: Through Telnet users can access someone else’s computer remotely.
C: TFTP is less capable compared to FTP. TFTP is used where user authentication and directory visibility arenot required.
D: SMTP is used only for sending email messages.

Stewart, James M., Ed Tittel, and Mike Chapple, CISSP: Certified Information Systems Security Professional
Study Guide, 5th Edition, Sybex, Indianapolis, 2011, p. 125