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CompTIA Security+ · CompTIA
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Telnet is considered insecure because it transmits data, including credentials, in plaintext. To securely manage a remote server, a protocol that encrypts the session should be used. SSH (Secure Shell) provides encrypted remote command-line access and is the standard replacement for Telnet.
SSH is recommended because: It provides strong encryption for all data transmitted It's a secure protocol, meeting the requirement of avoiding insecure options It allows secure remote access to servers, which is what you're looking for It's widely used and supported for development environments It can be used to set up secure tunnels for accessing web servers remotely
C. SSH SSH (Secure Shell) provides encrypted remote access to servers, making it a secure alternative to Telnet, which transmits data in plaintext. SSH is commonly used for secure management of remote systems and would be the appropriate choice given the restriction on insecure protocols.