CompTIA Security+ (SY0-601) — Question 741

After a recent security breach, a security analyst reports that several administrative usernames and passwords are being sent via cleartext across the network to access network devices over port 23. Which of the following should be implemented so all credentials sent over the network are encrypted when remotely accessing and configuring network devices?

Answer options

• A. SSH
• B. SNMPv3
• C. SFTP
• D. Telnet
• E. FTP

Correct answer: A

Explanation

SSH (Secure Shell) is the correct choice because it encrypts all data, including usernames and passwords, during transmission. The other options, such as Telnet and FTP, also transmit credentials in cleartext, while SNMPv3 and SFTP serve different purposes and do not directly address the concern of encrypting credentials for remote device access.