GIS Analyst Interview Questions and Answers for Freshers

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

• GIS is used to create maps and visualize data in a spatial context.

• It combines various data sources like satellite imagery, aerial photographs, and survey data.

• GIS allows for spatial analysis, such as finding the shortest route between two points or identifying areas prone to flooding.

• It is widely used in urban planning, environmenta...read more

Georeferencing is the process of aligning spatial data to a known coordinate system to remove errors and ensure accurate positioning.

• Georeferencing involves assigning spatial coordinates to data points based on a reference system.

• Common methods include using control points, GPS data, or known landmarks to align data accurately.

• Georeferencing is essential for GIS analysis, mapping, and spatial data visualization.

• Errors in georeferencing can lead to inaccuracies in spatial anal...read more

GPS stands for Global Positioning System. It is a satellite-based navigation system that provides location and time information.

• GPS is a network of satellites that orbit the Earth.

• It uses signals from these satellites to determine the precise location of a GPS receiver.

• GPS can provide accurate positioning information anywhere on Earth, as long as there is a clear line of sight to at least four satellites.

• It is commonly used in navigation systems, mapping, surveying, and vario...read more

Creating geodatabases, digitizing data, and creating shapefiles are common tasks for GIS analysts.

• Create a geodatabase to store spatial data

• Digitize data by converting analog information into digital format

• Create shapefiles to represent geographic features

• Use GIS software like ArcGIS or QGIS for these tasks