What feature is important for allowing detailed monitoring of print queues?

The correct choice for allowing detailed monitoring of print queues is the Microsoft Management Console (MMC). MMC is a framework that provides a graphical user interface for managing hardware and software components in Windows systems. Within MMC, system administrators can create custom management consoles and add different snap-ins that are relevant to their needs, including those for monitoring and managing printers and print queues.

Using MMC, administrators can gain insights into the status of print jobs, manage printer settings, and troubleshoot any issues related to printing. This level of monitoring and management is essential in environments with multiple printers and users to ensure efficient operation and to address any problems quickly.

The other options, while relevant to printing processes, do not directly focus on detailed monitoring of print queues. Duplex mode refers to the ability of a printer to print on both sides of the paper, enhancing efficiency but not monitoring capabilities. A print server is a networked server that manages print tasks, but it typically requires management tools like the MMC for detailed monitoring. The security tab pertains to access permissions for printers rather than monitoring print queues.