Which of the following should NOT be used to send sensitive data? Choose all that apply.

A.
Telnet.

B.
FTP.

C.
SSH.

D.
All of the above

Explanation:
Telnet should not be used because it does not offer data protection. Data can easily be interpreted when Telnet is used. FTP, like Telnet sends data in clear text, and should therefore not be used.
Incorrect Answers:
C: You should rather use SSH, to send traffic over the Internet. Secure shell (SSH) encrypts the data being transmitted. Even if traffic is intercepted while it is being

transmitted, it will be undecipherable.
D: SSH can be used to send data over the Internet.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 457-458.