Geographic Information System (GIS) Interview Questions And Answers

1. A map drawn by using CAD/CAM tools
2. A form of map drawn by using Braille for the visually impaired
3. A form of map where objects are drawn using non-Euclidean coordinates
4. A form of map based on photogrametric principles.

A form of map where objects are drawn using non-Euclidean coordinates

1. Extremities
2. Equal interval
3. User-specified
4. Percentiles
5. Quartiles

Extremities

1. Unreadable maps and graphs
2. Unnecessary detail around maps and diagrams
3. Awful pop music.
4. Incorrect plots generated by GIS.

Unnecessary detail around maps and diagrams

1. Visual Resource Markup Language
2. Virtual Reality Modelling Language
3. Visual Relationship Modelling Language
4. Virtual Reality Markup Language

Virtual Reality Modelling Language

1. A pilot's head-up cockpit display
2. A mobile GIS consisting of PDA and mobile phone
3. A set of graphs and maps where items are linked in separate displays
4. A set of linked tables displayed in a RDBMS.

A set of graphs and maps where items are linked in separate displays

1. GPS coordinate plots
2. Charts
3. Tables
4. Dynamically linked graphs
5. Thematic maps

Charts, Tables and Dynamically linked graphs

1. They are easy to use
2. They do not require user intervention
3. They incorporate spatially explicit models
4. They are designed to make full use of available data
5. They are designed to handle exclusively spatial data

They are easy to use.
They incorporate spatially explicit models.
They are designed to make full use of available data

1. True
2. False

True

1. True
2. False

False

1. True
2. False

True

1. True
2. False

False

1. True
2. False

False

1. True
2. False

True

1. True
2. False

True

1. True
2. False

True

1. True
2. False

True

1. True
2. False

True

A geographic information system (GIS) is a computer system designed to capture, store, manipulate, analyze, manage, and present all types of spatial or geographical data. The acronym GIS is sometimes used for geographical information science or geospatial information studies to refer to the academic discipline or career of working with geographic information systems and is a large domain within the broader academic discipline of Geoinformatics. What goes beyond a GIS is a spatial data infrastructure, a concept that has no such restrictive boundaries.

Modern GIS technologies use digital information, for which various digitized data creation methods are used. The most common method of data creation is digitization, where a hard copy map or survey plan is transferred into a digital medium through the use of a CAD program, and geo-referencing capabilities.

GIS hydrological models can provide a spatial element that other hydrological models lack, with the analysis of variables such as slope, aspect and watershed or catchment area.

Geostatistics is a branch of statistics that deals with field data, spatial data with a continuous index. It provides methods to model spatial correlation, and predict values at arbitrary locations (interpolation).

Spatial ETL tools provide the data processing functionality of traditional Extract, Transform, Load (ETL) software, but with a primary focus on the ability to manage spatial data. They provide GIS users with the ability to translate data between different standards and proprietary formats, whilst geometrically transforming the data en route.

GIS or spatial data mining is the application of data mining methods to spatial data. Data mining, which is the partially automated search for hidden patterns in large databases, offers great potential benefits for applied GIS-based decision making. Typical applications including environmental monitoring. A characteristic of such applications is that spatial correlation between data measurements require the use of specialized algorithms for more efficient data analysis.

GIS is a system of computer software, hardware, data, procedures and personnel combined to help, manipulate, analyze, and present information that is tied to a geographic location.

The District GIS software standards consist of the Environmental Systems Research Institute Inc. (ESRI) products and Google Inc. geospatial services and software. The ESRI standard includes the ArcGIS line of desktop and server software product lines. The Google standard includes the Google Earth Enterprise line of server side products and Google Maps for mash-up type applications. Other geospatial software packages and vendors can be accommodated if necessary to meet specific business requirements.