Which of the following tools can be utilized for User Administration?

SAP NetWeaver Identity Management is pivotal for user administration within the context of SAP environments. This tool allows organizations to manage user identities across various systems consistently and effectively. It provides functionalities such as user creation, modification, and deactivation, as well as managing user roles and permissions in a centralized manner. This central management streamlines administrative tasks and enhances governance by ensuring compliance with security policies.

While the other options may have their respective purposes—like SAP HANA Studio being a development and administration interface for HANA database activities and hdbsql providing a command line tool for database interactions—they do not specialize in user administration duties as effectively as SAP NetWeaver Identity Management. The SAP Help Portal, on the other hand, is primarily a resource for documentation and support, lacking direct features for managing user accounts and access rights. Therefore, the focus on robust user identity management makes SAP NetWeaver Identity Management the correct choice for user administration tasks.