GIS 201 Chapter 7

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Author:
dtarasov
ID:
107438
Filename:
GIS 201 Chapter 7
Updated:
2011-10-09 10:23:29
Tags:
chapter GIS 201
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Description:
Terms and concepts from chapter 7 in GIS 201.
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  1. What are the 2 major types of overlay?
    • A. Extraction functions and overlay with attributes
    • B. On-the-fly and overlay with attributes
    • C. On-the-fly and extraction functions
    • D. Polynomial and on-the-fly
  2. Are SHAPE_LENGTH and SHAPE_AREA fields automatically updated when one runs a Clip or Erase function?
    • A. Yes
    • B. No
    • C. Yes for Clip, No for Erase
    • D. It depends
    • A. The answer is yes.
  3. Are fields other than SHAPE_LENGTH and SHAPE_AREA automatically updated after a Clip or Erase function?
    • A. Yes
    • B. No
    • C. Yes for Clip, No for Erase
    • D. It depends
    • B. The answer is no.
  4. What does a union overlay do?
    • A. Combines features and keeps what is common to both.
    • B. Removes all features that fall outside another feature class.
    • C. Removes all features that fall inside another feature class.
    • D. Combines and keeps all features.
    • D. The answer is D.
  5. What does an intersect overlay do?
    • A. Combines and keeps all features.
    • B. Combines features and keeps what is common to both.
    • C. Removes all features that fall outside another feature class.
    • D. Removes all features that fall inside another feature class.
    • D. Combines all features and keeps what is common to both.
  6. True or False: The append function places features from one feature class into an existing feature class of the same type. Unlike with union, if the features overlap, the features in the overlap area will be double.
    • A. True
    • B. False
    • A. The correct answer is True.
  7. True or False: to append two feature classes, the relevant attributes in their attribute tables should match exactly.
    • A. True
    • B. False
    • A. The correct answer is True.
  8. True or False: to merge two feature classes, the relevant attributes in their attribute tables should match exactly.
    • A. True
    • B. False
    • B. The correct answer is False.
  9. True or False: with shapefiles, area fields are NOT updated automatically.
    • A. True
    • B. False
    • A. The answer is True.

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