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GIS Analysis

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.
Refers to the number of colors per pixel that can be displayed in an image and affects image quality and file size
a)
Compression
b)
Transparency 
c)
Portability 
d)
Color Depth
2.
Refers to the mathematical algorithm used when an image is saved to reduce file size
a)
Compression
b)
Portability 
c)
Transparency
d)
Color depth
3.
No data is lost during compression
a)
Lossless 
b)
Lossy
4.
Some data is lost during compression
a)
Lossless
b)
Lossy
5.
_______ is the ease at which files are opened, modified, and viewed on computers using different operating systems, software and browsers.
a)
Transparency
b)
Portability
c)
Compression
d)
Color Depth
6.
_________ is the background of an image is “see-through” so that the graphic can blend into the background without having a white box around it.
a)
Color Depth 
b)
Portability
c)
Compression
d)
Transparency
7.
The standard unit of measurement for US standard size papers that can work well for print.  A “Letter” size piece of paper measures 8.5” x 11”, which is the most common size used in printers, for resumes, and other common desktop publishing documents.
a)
Inches
b)
Pixels
c)
Picas
d)
Points
8.
The most common unit of measurement used for computer screen display.  
a)
Picas
b)
Inches
c)
Pixels
d)
Points
9.
_______ is the amount of detail stored for an image.
a)
All the Above
b)
Resolution
c)
Color Mode
d)
Color Depth
10.
PPI stands for?
a)
Picas per Inch
b)
Pizza per Inch
c)
Pixels per Inch
d)
Pages per Inch
11.
Which color mode is best for on screen  display?
a)
RGB
b)
CMYK
c)
PPI
d)
DPI
12.
Which color mode is best for images that are being printed?
a)
RGB
b)
CMYK
c)
PPI
d)
DPI
13.

A raster image that is best used for saving logo files for websites because they can have a transparent background; is generally larger and higher quality

a)

JPG

b)

PNG

c)

GIFF

d)

AI

14.

Jill needs to crate several web buttons and icons for her a webpage she is developing for her client. Which raster format is suitable for this?

a)

GIFF

b)

PNG

c)

EPS

d)

JPG

15.

Spencer wants to use the same logo on my website for my business cards and letterhead. I should use a ____________ image and should be at least ________________.

a)

raster; 72 dpi

b)

raster; 300 ppi

c)

vector; 300 dpi

d)

vector; 72 ppi

16.

Input feature geometry replaced by another layer

a)

Update

b)

Union

c)

Merge

d)

None

17.

What is the function that the image represent?

a)

Raster Overlay

b)

Feature Overlay

c)

Overlay analysis

d)

Combine

18.

Calculates the number of unique values for all cells in the value raster that belong to the same zone as the output cell.

a)

VARIETY

b)

SUM

c)

MEAN

d)

RANGE

19.

If the zone input is a feature dataset, a vector-to-raster conversion will be internally applied to it. To ensure that the results of the conversion will align properly with the value raster, it is recommended that you check to ensure the extent and snap raster are set appropriately in the environment settings and the raster settings.

Since the internal raster must have an attribute table, an error will occur if one was not created in the conversion. If this happens, convert your feature dataset directly with_______

20.

OutRas = ZonalStatistics(ZoneRas, "VALUE", ValRas, "MINIMUM") What is the output this expression

a)

Calculates statistics on values of a raster within the zones of another dataset.

b)

Determines the smallest value of all cells in the value raster that belong to the same zone as the output cell.

c)

Determines the value that occurs least often of all cells in the value raster that belong to the same zone as the output cell.

d)

None of the above

21.

Con(Raster("elev") > 1000, 0, 1) What does 0 represent?

a)

True

b)

False

c)

Not

d)

range

22.

The _______ tool extracts lines of constant value (isolines) from a raster surface

a)

Contours

b)

TIN

c)

DTM

d)

DSM

23.

Determines if additional spatial relationships between the in_features and the identity_features are to be written to the output.

a)

This only applies when the in_features are lines and the identity_features are polygons.

b)

The output line features will contain two additional fields, LEFT_poly and RIGHT_poly. These fields contain the feature ID of the identity_features on the left and right side of the line feature.

c)

No additional spatial relationship will be determined.

d)

None of the above

24.

What does this expression does ?

TabulateArea(ZoneRas, "VALUE", ClassRas, "VALUE", Tabarea1.dbf, 1)

a)

Area Calculation

b)

Reclassify

c)

Zonal Stats

d)

Something in table

25.

Contour line dataset with item containing height values.

a)

Contour <Path> <Item>

b)

OUT_STREAM

c)

Contour <Item><Path>

d)

IN_STREAM