Which of the following uses port 22 by default? (Select THREE).
A.
SSH
B.
SSL
C.
TLS
D.
SFTP
E.
SCP
F.
FTPS
G.
SMTP
H: SNMP
Explanation:
SSH uses TCP port 22. All protocols encrypted by SSH, including SFTP, SHTTP, SCP, SExec, and slogin, also
use TCP port 22.
Incorrect Answers:
B: SSL operates over TCP port 443.
C: TLS can operate over TCP ports 443 and 80.
F: FTPS uses ports 989 and 990.
G: SMTP uses TCP port 25.
H: SNMP makes use of UDP ports 161 and 162.Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 42, 45, 51
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers