What is the primary responsibility of a network administrator regarding security tasks?

The primary responsibility of a network administrator concerning security tasks is to assign unique user IDs and passwords. This function is essential for establishing strong access controls, which protect the network from unauthorized access. By ensuring that all users have distinctive credentials, the network administrator can track individual activities and maintain accountability within the network. This minimizes the risk of data breaches and enhances the overall security posture of the organization.

While developing software applications, coordinating email services, and creating backup systems are important aspects of IT management, they do not directly relate to the fundamental security task of managing user identities and access control. Effective security begins with controlling who can access the network and its resources, making the assignment of user IDs and passwords a critical responsibility for safeguarding information and systems.