Comptia Security Plus Mock Test Q108

A security engineer, Joe, has been asked to create a secure connection between his mail server and the mail server of a business partner. Which of the following protocol would be MOST appropriate?

A. HTTPS
B. SSH
C. FTP
D. TLS

Correct Answer: D
Section: Network Security

Explanation
Transport Layer Security (TLS) is a cryptographic protocol designed to provide communications security over a computer network. It uses X.509 certificates and hence asymmetric cryptography to authenticate the counterparty with whom it is communicating, and to exchange a symmetric key. The TLS protocol allows client-server applications to communicate across a network in a way designed to prevent eavesdropping and tampering.

Incorrect Answers:
A: HTTPS provides the secure means for web-based transactions by utilizing various other protocols such as SSL and TLS.

B: SSH is used to establish a command-line, text-only interface connection with a server, router, switch, or similar device over any distance.

C: Standard FTP is a protocol often used to move files between one system and another either over the Internet or within private networks.

References:
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 42, 46, 49