Buffers And Overlays

Question 1

A loose definition of geoprocessing is:

Answer 1

The generation of a new layer by performing an action transformation on another layer followed by a query.

Question 2

True or false

Buffers can be isolated to one side or another

Answer 2

True

Question 3

What is the difference between dissolved buffers and undissolved buffers

Answer 3

Dissolved buffers create one polygon, undissolved buffers are all separate overlapping.
Dissolved buffers have a smaller area then undissolved

Question 4

What is a proximity search?

Answer 4

A type of analysis in which geographic features are selected based on their distance from other features or cells

Question 5

True or false

Distance functions are similar to buffers

Answer 5

True

Question 6

What is a distance function?

Answer 6

Finding the closest object to a source

Question 7

True or false

Proximity must be strictly based off straight lines

Answer 7

False

Question 8

What is a least cost path?

Answer 8

Curved or bent lines used to determine distance function. Street directions

Question 9

Euclidean distance analysis uses what mathematical equation?

Answer 9

Pythagorus theorem

Question 10

Euclidian distance is made in …..

Answer 10

Raster

Question 11

Define a buffer.

Answer 11

A zone around a map feature measured in units of distance or time, a buffer is a useful proximity analysis