Which of the following protocols is MOST commonly used for the transfer of router configuration
files?

A.
SSL

B.
TFTP

C.
DNS

D.
IMAP

Explanation:

Trivial File Transfer Protocol(TFTP) is a file transfer protocol notable for its simplicity. It is
generally used for automated transfer of configuration or boot files between machines in a local
environment. Compared to FTP, TFTP is extremely limited, providing no authentication, and is
rarely used interactively by a user.