A security analyst needs to logon to the console to perform maintenance on a remote server. Which of
the following protocols would provide secure access?

A.
SCP

B.
SSH

C.
SFTP

D.
HTTPS

Explanation:
Secure Shell (SSH) is a tunneling protocol originally used on Unix systems. It’s now available for both Unix
and Windows environments. SSH is primarily intended for interactive terminal sessions.
SSH is used to establish a command-line, text-only interface connection with a server, router, switch, or
similar device over any distance.
Incorrect Answers:
A: Secure Copy Protocol (SCP) is a secure file-transfer facility based on SSH and Remote Copy Protocol
(RCP).
C: SFTP encrypts authentication and data traffic between the client and server by making use of SSH to
provide secure FTP communications. As a result, SFTP offers protection for both the authentication traffic
and the data transfer taking place between a client and server.
D: HTTPS provides the secure means for web-based transactions by utilizing various other protocols such
as SSL and TLS.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 42, 46, 50
Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, p. 271