Q.Name and briefly describe any two database models other than the relational model.

This question checks awareness of database models beyond the relational one that the chapter focuses on.

Besides the relational model, other database models include:

1. Hierarchical model: data is organised in a tree-like (parent–child) structure, where each child record has exactly one parent, similar to an organisation chart. It is simple and fast for tree-shaped data but rigid, because it cannot easily represent a record that needs many parents.
2. Network model: an extension of the hierarchical model in which a record can have more than one parent, so relationships form a network (a graph) rather than a strict tree. It is more flexible than the hierarchical model but more complex to design and use. …

Do not describe the relational model here — the question specifically asks for models other than relational. Keep the distinction clear: hierarchical = o …