What is a key feature of the Network DBMS?

A key feature of a Network Database Management System (DBMS) is its support for many-to-many relationships among data entities. This means that a single record in one table can be related to multiple records in another table, and vice versa. This capability is crucial in scenarios where complex relationships exist, such as in social networks, organizational structures, or anywhere a more intricate relationship model is required.

The architectural framework of a Network DBMS is typically based on a graph structure, allowing for direct connections between nodes (records) that can represent these many-to-many relationships efficiently. Through this design, a more flexible and interconnected way to model data is possible, enabling applications to run complex queries that draw on these relationships. This facilitates better data retrieval and management as opposed to systems limited to strict one-to-one or one-to-many relationships, which can be more restrictive in terms of how data can be interconnected.

In contrast, a tree structure, one child per parent, and flat tables characterize different database models that do not provide the same relational complexity as a Network DBMS. This is why the ability to support many-to-many relationships stands out as a defining characteristic of Network DBMS.