Which user has the authority to create a new user in ADB?

In ADB, the user with the authority to create new users is typically the ADMIN user. This user account has been granted the necessary privileges to manage users and their associated roles within the database environment.

The ADMIN user is essential for database administration tasks such as managing database security, configuring user access, and ensuring that the right permissions are allocated to different users. As a result, the ADMIN account is commonly used in environments where user creation and management are required.

For clarity on why the other options do not represent the correct answer: the SYSTEM account typically has administrative rights but may not have the specific user management capabilities assigned to ADMIN. DBSNMP is usually meant for monitoring and management but lacks user creation privileges. The SYS account, while powerful and often used for database management tasks, primarily handles database operations and maintenance rather than user account configurations in many contexts.

Thus, recognizing the role of the ADMIN user clarifies why it is the correct choice for creating new users in ADB.