Chapter 14 Questions:
a.    List 4 common spatial data formats.
They are shapefiles, coverages, CAD files and geodatabases.  
b.    What is a feature class?   
A feature class is a single shapefile for a specific feature like water valves. It is also a group of points and lines representing similar geographic objects.
c.    What is the difference between a shapefile and a geodatabase in terms of features classes?
A shapefile only contains one feaure class, while the geodatabase can contain many feature classes that coordinate relationships between classes.
d.    What do you have to define when you create a new feature class?
You have to define the parameters like the line, point or polygon and the spatial reference.
e.    What are fields (in the context of creating a new feature class)?    

They are Obeject ID and Shape, ID gives an unique number to each feature class and shape stores the coordinate system.

Chapter 15 Questions:

f.    What is “heads-up digitizing”?    
It is tracing a map like an aerial photo with a mouse or puck directly onto a computer screen.
g.    What is snapping?       
Snapping to establish exact locations in relations to other features on the map.
h.    What is the difference between a vertex and an edge on a line?   

Vertexs are point features that are connected by segments that make up a line or polygon feature. An edge of a  line is simply a feature of connected points that compose the line whether is be alone or a side to a polygon.

Chapter 16 Questions:

i.    What attributes does ArcMap automatically update for you if you split or merge features in a geodatabase?   
It automatically changes the shape length and the shape area.
j.    How many parcels in Exercise 16c are at least 2 acres in size?     

There were 75 parcels.