Which configuration method is considered secure for remote access to a network device?

Which configuration method is considered secure for remote access to a network device?

• A. Configure Telnet
• B. Configure HTTP
• C. Configure FTP
• D. Configure SSH

Answer: (D)

The configuration method that is considered secure for remote access to a network device is SSH (Secure Shell). SSH provides a secure channel over an unsecured network by utilizing encryption for both the command and data being transmitted. This encryption protects against eavesdropping, connection hijacking, and other attacks that can be more easily executed against unencrypted communications. In contrast, Telnet, HTTP, and FTP are not secure for the following reasons: - Telnet transmits data, including usernames and passwords, in plain text. This means that anyone with the ability to intercept the traffic can easily read the credentials and other sensitive information. - HTTP (Hypertext Transfer Protocol) is also unencrypted, which opens it to similar vulnerabilities as Telnet, making it unsuitable for transmitting sensitive login information over the network. - FTP (File Transfer Protocol) by itself does not provide encryption for the data or credentials being transmitted, leading to risks such as data and password interception. Using SSH ensures that remote access to the network device is maintained securely, making it the preferred choice for network administrators.

The configuration method that is considered secure for remote access to a network device is SSH (Secure Shell). SSH provides a secure channel over an unsecured network by utilizing encryption for both the command and data being transmitted. This encryption protects against eavesdropping, connection hijacking, and other attacks that can be more easily executed against unencrypted communications.

In contrast, Telnet, HTTP, and FTP are not secure for the following reasons:

• Telnet transmits data, including usernames and passwords, in plain text. This means that anyone with the ability to intercept the traffic can easily read the credentials and other sensitive information.

• HTTP (Hypertext Transfer Protocol) is also unencrypted, which opens it to similar vulnerabilities as Telnet, making it unsuitable for transmitting sensitive login information over the network.

• FTP (File Transfer Protocol) by itself does not provide encryption for the data or credentials being transmitted, leading to risks such as data and password interception.

Using SSH ensures that remote access to the network device is maintained securely, making it the preferred choice for network administrators.