Comptia Security Plus Mock Test Q124

Which of the following is the default port for TFTP?

A. 20
B. 69
C. 21
D. 68

Correct Answer: B
Section: Network Security

Explanation:
TFTP makes use of UDP port 69.

Incorrect Answers:
A, C: FTP (File Transfer Protocol) uses ports 20 and 21
D: Port 68 TCP/UDP is used by Bootstrap Protocol (BOOTP) Client; as well Dynamic Host Configuration Protocol (DHCP).

References:
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, p. 51
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers