Question

Organizational structures with one or more layers of authority between top-level management and employees are known as vertical or _______ a0 organizations.

Answer 1

The organizational structure described here, which is known as vertical organizational structure, is also commonly identified as tall organizations.

They usually have hierarchical structures, with the CEO being at the very top of the layer. Tall organization have multiple levels, compared to its counterpart, the flat organization or horizontal, which would only have one level.  

Answer 2

Organizational structures with one or more layers of authority between top-level management and employees are known as vertical or  

horizontal

a0 organizations.

that is correct.