Which connections must be explicitly enabled for a Restricted User in SAP HANA?

In SAP HANA, when dealing with user roles and permissions, certain connections must be explicitly enabled to ensure that restricted users can access the system in a controlled manner. JDBC (Java Database Connectivity) and ODBC (Open Database Connectivity) are the key protocols used for database access by applications and enterprise systems. These protocols allow applications to communicate with the HANA database to execute SQL queries, retrieve data, and manipulate the database.

By enabling JDBC and ODBC connections for a restricted user, it ensures that they can interact with the database using these standard connection methods, which are commonly used in enterprise environments. This setup is essential for maintaining data security and ensuring that users with restricted access only perform operations that their roles permit.

Other options like HTTP and HTTPS facilitate web-based communication and could be relevant for web-based applications accessing HANA but aren't the core connections specifically tied to database access for restricted users. Options involving FTP, SFTP, SSH, and RDP generally pertain to file transfer or remote desktop access and are not directly related to database connectivity in the context of SAP HANA's user permissions and access management. Thus, JDBC and ODBC are the correct choices for enabling essential database interactions for restricted users.