Geographic Information System

GIS represents a location in ______ dimensional coordinates.

• 2

• 3

• 4

• 5

What is a datum?

• A mathematical model

• The mathematical model related to real-world features

• Real-world features are projected with minimum distortion from the round earth to a flat map.

• A system of coordinates.

Which of the following data formats would most likely represent a file exported from AutoDesk-AutoCAD?

• .SHP

• .DXF

• .TXT

• .LAS

Numerous employees in your organization need access to the streets data that your team is responsible for maintaining in an enterprise database. From the options given below, what is the best way to handle access to these data?

• Set the streets layer’s permissions to allow everyone in your enterprise full control

• Set the streets layer’s permission to allow full control only to your team

• Set the streets layer’s permission to allow full control only to your team and read-only access to the remainder of your enterprise

• Set up a download site for everyone in your enterprise. Direct access to these data will be restricted to your team only.

A process where a survey plan or hard copy is a map and is represented digital medium using geo-referencing capabilities and CAD tool is called ______ technique.

• Digitization

• Modulation

• Demodulation

• None of the above

The process of capturing satellite image is called _______

• Orthophoto

• Ortho photograph

• Ortho image

• All the above

A GIS coordinates can represent which of the following systems?

• Highway mile marker

• Surveyor benchmark

• Entrance gate

• All the above

Object-relational databases have become the cornerstone of modern GIS. These databases can be best described in which of the following ways:

• Each database contains one table and one GIS layer

• The database contains one attribute table for each GIS layer. The attribute table may contain numerous fields (attributes)

• The database will contain many GIS layers, each with an attribute table. The attribute table may contain numerous fields (attributes)

• The database will contain many GIS layers, each with an associated attribute table. In addition, other tables may exist that further describe specific characteristics of the GIS layer and are associated with the GIS layer through a relationship. Each table may contain numerous fields (attributes).

Calculations (sum, average, median, etc.) can’t be performed on this type of field

• Character

• Integer

• Floating

• BLOB

Which of the following industries knows raster graphic as contones?

• Prepress

• Printing

• Trading

• Both a and b