Secure Sockets Layer (SSL) and its successor, Transport Layer Security (TLS), are cryptographic protocols designed to provide communications security over a computer network such as the Internet. Although SSL has been deprecated and replaced by TLS, the term 'SSL/TLS' is still commonly used to refer to this type of encryption in the context of HTTPS connections which secure the communication between the user's browser and the web server. The other options, such as SSH and SNMP, also involve security but serve different purposes with SSH for secure command-line access and SNMP for network management, neither of which is directly related to HTTPS encryption or the web.