What is a primary responsibility of a Database Administrator (DBA)?

The primary responsibility of a Database Administrator (DBA) is managing, maintaining, and securing a database system. This encompasses a variety of critical tasks, including ensuring that the database is operational and performs efficiently. DBAs are responsible for installing database management systems, configuring settings, monitoring performance, and troubleshooting issues that may arise. They also implement data backup and recovery strategies to protect against data loss and ensure business continuity.

Another essential aspect of a DBA's role is security management. This includes controlling access permissions, ensuring that sensitive data is protected, and complying with data governance and regulatory requirements. By managing these components effectively, a DBA ensures that the database runs smoothly and provides reliable access to data for users and applications.

The other options relate to different areas of expertise. Developing software applications and designing user interfaces pertain more to roles in software development and user experience design, while analyzing market trends is typically associated with marketing or data analysis roles, rather than database management.