10+ GIS Executive Interview Questions and Answers

Creating topology involves defining the spatial relationships between features in a GIS dataset.

• Identify the features and their spatial relationships

• Determine the rules for the topology

• Use GIS software to create the topology

• Validate and correct errors in the topology

• Examples: connecting adjacent polygons, ensuring lines do not overlap

A map is a visual representation of an area, while a projection is a method of displaying a 3D globe on a 2D surface.

• Maps are used to show geographic features and spatial relationships.

• Projections are used to transform the curved surface of the Earth onto a flat surface.

• There are many different types of map projections, each with their own strengths and weaknesses.

• Common map projections include Mercator, Robinson, and Peters.

• Choosing the right projection depends on the purpos...read more

GIS stands for Geographic Information System, a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data.

• GIS is used to analyze and visualize spatial data, such as maps, satellite images, and aerial photographs.

• It helps in making informed decisions by providing insights into patterns, trends, and relationships in the data.

• GIS is used in various industries like urban planning, environmental management, disaster response, and transp...read more

To create a shapefile in QGIS, follow these steps:

• Open QGIS and add a new layer

• Select the layer type as 'New Shapefile'

• Choose the geometry type and coordinate reference system

• Add attribute fields and save the shapefile

Spatial data refers to information that has a geographic or locational component attached to it.

• Spatial data includes coordinates, addresses, boundaries, and other location-based information.

• It is used in GIS to analyze and visualize data in relation to its location.

• Examples of spatial data include maps, satellite imagery, GPS data, and geospatial databases.

GIS stands for Geographic Information System, which is a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data.

• GIS is used to visualize, interpret, and analyze data related to locations on Earth's surface.

• It combines layers of information to give a better understanding of a location, such as population density, land use, or elevation.

• Coordinates are pairs of numbers used to represent a specific location on Earth's surface, typi...read more

A basemap is a foundational map used as a background for displaying additional layers of geographic information.

• Basemaps provide context and reference for other data layers

• They typically include features like roads, boundaries, water bodies, and terrain

• Examples of basemaps include Google Maps, OpenStreetMap, and Esri World Imagery

Georeferencing is the process of assigning real-world coordinates to a digital image or map.

• It involves aligning the image or map with a known coordinate system.

• Common methods include using GPS data, known control points, or street addresses.

• Georeferencing allows for accurate spatial analysis and visualization.

• Examples include georeferencing satellite imagery for disaster response or historical maps for urban planning.

To create a geodatabase file, follow these steps:

• Open ArcCatalog or ArcMap

• Create a new folder for the geodatabase

• Right-click the folder and select New > File Geodatabase

• Name the geodatabase and click OK

• The geodatabase is now ready to use

OSM stands for OpenStreetMap, a collaborative mapping project that provides free geographic data to anyone who wants to use it.

• OSM is a community-driven project where volunteers contribute data about roads, trails, buildings, and more.

• The data in OSM is open and can be used for various purposes such as creating maps, analyzing spatial patterns, and developing applications.

• OSM data is often used in GIS applications for mapping and spatial analysis.

• Examples of OSM data usage in...read more

OpenStreetMap is a collaborative project to create a free editable map of the world.

• OpenStreetMap is a free and open-source mapping platform

• Users can contribute by adding, editing, and updating map data

• It provides data for various applications like GIS, navigation, and location-based services