Oracle spatial interview questions

What is an oracle spatial?
Oracle spatial is an integrated set of functions and procedures that enables spatial data to be stored,accessed,analyzed quickly in an oracle database.
What are spatial data?
Spatial objects exist in real or conceptual space and details on location of objects in this space represent the spatial data.
What is a geometry?
A geometry is an ordered sequence of vertices that are connected by lines or circular arcs.
Name few geometry types:-
Commonly used geometry types are points and point clusters,line strings,n-point polygon,arc line strings,arc polygons,compound polygons,compound line strings,circles,optimized rectangles.
What is a data model?
Data model is a hierarchical geometric model that represents spatial data in form of layers.Layers are made of geometry which in turn are made of elements.