Deck 12: How to Use Raster Data in Arcgis Pro

Question 1

Which of the following best describes a raster region?

A) All unique cell values in a grid
B) Areas formed by contiguous cells that have the same value
C) All cells that have the same grid cell resolution
D) All cells that link together to form a path from a source to a target

Answer 1

B

Question 2

In the NLCD 2006 classification, what numerical value is assigned to Open Water?

A) 1
B) 11
C) 22
D) 95

Answer 2

B

Question 3

Which of the following techniques is used to only work with a small portion of a total raster dataset?

A) Vectorization
B) Zoning
C) Subset
D) Mosaic

Answer 3

C

Question 4

What is the grid cell resolution of NLCD 2006 data?

A) 10 m
B) 30 m
C) 100 m
D) 1 km

Question 5

In the NLCD 2006 classification, a value of 4" indicates that a grid cell represents which type of land cover?

A) Deciduous Forest
B) Coniferous Forest
C) Mixed Forest
D) Tropical Forest

Question 6

In the NLCD 2006 classification, a value of 90 indicates that a grid cell represents which type of land cover?

A) Perennial Ice and Snow
B) Developed, Open Space
C) Barren Land
D) Woody Wetlands

Question 7

When "NoData" is assigned to a grid cell, what value does it have?

A) One
B) Zero
C) It has an infinite value.
D) It has no value.

Question 8

Which of the following techniques is commonly done to be able to analyze the size or extent of large contiguous blocks of grid cells that have the same properties?

A) Vectorization
B) Rasterization
C) Regiongrouping
D) Zoning

Question 9

In the NLCD 2006 classification, what numerical value is assigned to Pasture/Hay?

A) 4
B) 63
C) 71
D) 81

Question 10

In a VAT, the number assigned to the COUNT field represents:

A) How many cells of each zone are in the grid
B) How many raster regions are in the grid
C) The total number of all cells in the grid (not counting No Data cells)
D) The sum of all cells in each zone, the number of regions, and the number of No Data cells

Question 11

Which of the following is not an advantage of raster data over vector data?

A) Raster data is better suited for representing topological relationships than vector data
B) The raster data model is simpler than the vector data model
C) Overlay is must simpler with raster data than with vector data
D) Raster data is much better suited for representing phenomena with a high spatial variability than vector data

Question 12

How much real-world area does a 3  3 10-m raster grid cover?

A) 10 m²
B) 90 m²
C) 300 m²
D) 900 m²

Question 13

A single square unit of a raster is a:

A) raster block
B) grid cell
C) block group
D) range

Question 14

What ArcGIS Extension is used for dealing with raster data tools and derivations?

A) Raster Analyst
B) Spatial Analyst
C) Grid Analyst
D) Environmental Analyst

Question 15

Which of the following concepts is not best described using the "Field View" in GIS?

A) Property boundaries
B) Elevation surfaces
C) Land cover types
D) Distance to a source

Question 16

Which of the following techniques is used to knit several raster datasets together into one?

A) Regiongrouping
B) Zoning
C) Subset
D) Mosaic