ESRI PRO Associate Certification
Exam With Answers
A set of transformation steps performed on raster data to extract meaningful
information-correct-answer-Raster data processing
Allows the creation of multiple products from a single source and reduced latency
from acquisition to dissemination.
It also eliminates the required time and space needed for intermediate products.
This type of processing translates to drastically saving time when delivering image
products and significantly reducing the costs of maintaining and processing
rasters.-correct-answer-Dynamic Processing
How do raster functions work?-correct-answer-Raster functions work by applying
image processing algorithms to the source data as the data is drawn on the
screen.
This technique allows only the visible pixels to be processed, reducing processing
time and the need for intermediate products.
Outputs options created from the on-the-fly processing-correct-answer-Layer File
,2|Page
Export Data
Used to adjust the reflectance, or brightness, values of some satellite imagery
based on the scene illumination and sensor-gain settings.
The images are adjusted to a theoretically common illumination condition, so
there should be less variation between scenes from different dates and different
sensors, which can be useful for image classification, color balancing, and
mosaicking.-correct-answer-Apparent Reflectance Function
A measure of healthy, green vegetation. This standardized index allows you to
generate an image displaying greenness (relative biomass).-correct-answer-NDVI
(normalized difference vegetation index)
The subtraction of one image band of one date from the same image band of
another date-correct-answer-Image Differencing
The process of reassigning a value, a range of values, or a list of values in a raster
to new output values.-correct-answer-Reclassification
Which Raster Function is appropriate when you work for a water planning and
management department and have acquired a set of temporal multispectral
,3|Page
images. You would like to monitor drought to mitigate impacts on agriculture in
your region.-correct-answer-NDVI
Which Raster Function is appropriate when you would like to map a mountainous
terrain where you separate areas that are flat or have few features from the areas
with steep slopes.-correct-answer-Shaded Relief
Which Raster Function is appropriate when you have obtained GeoEye-1 imagery
with clouds in some areas. You want to exclude the areas with clouds.-correct-
answer-Clip
Which Raster Function is appropriate when you have acquired a set of Landsat 8
images. You would like to adjust their brightness to a common illumination
condition so that there is less variation between scenes.-correct-answer-Apparent
Reflectance
A chain of raster functions with variables and with no datasets defined.
Can be applied to rasters, mosaic datasets, and image services-correct-answer-
Raster Function Template
, 4|Page
The process of identifying differences in the state of an object or a phenomenon
by observing it at different times.-correct-answer-Change Detection
T/F A function chain works in such a way that the output of one raster function
becomes the input to the raster function applied on top of it in the chain.-correct-
answer-True
T/F The advantage of using functions is that they are calculated only on the
portion of image shown on the screen at the resolution displayed.-correct-
answer-True
Which characteristics apply to raster functions? (Choose four.)
-Can be chained together and applied on huge rasters and mosaics on the fly
-Process only the pixels visible on screen
-Can be accessed by multiple applications and users
-Lightweight
-Permanently apply processing to raster data
-Do not create intermediate files-correct-answer--Can be chained together and
applied on huge rasters and mosaics on the fly
-Process only the pixels visible on screen
-Lightweight
-Do not create intermediate files