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50+ GIS Engineer Interview Questions and Answers

Updated 27 Jan 2025

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Q1. What would you know about the mapping

Ans.

Mapping is the process of creating visual representations of data on a geographic or spatial basis.

  • Mapping involves the use of GIS software and data to create maps

  • Maps can be used for a variety of purposes, such as analyzing patterns and trends, planning and decision-making, and communication

  • Mapping can involve different types of data, such as satellite imagery, topographic data, and demographic data

  • Mapping can also involve different types of analysis, such as spatial analysi...read more

Q2. Can you identify these objects (from a raster chart)

Ans.

Unable to answer without the raster chart.

    GIS Engineer Interview Questions and Answers for Freshers

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    Q3. What is mean by kml kmz

    Ans.

    KML and KMZ are file formats used for storing geographic data and information.

    • KML stands for Keyhole Markup Language and is used for displaying geographic data in an Earth browser such as Google Earth.

    • KMZ is a compressed version of KML and can contain multiple KML files, images, and other supporting files.

    • Both KML and KMZ files can contain points, lines, polygons, and other shapes with associated attributes and information.

    • KML and KMZ files are commonly used in GIS applicatio...read more

    Q4. What is HLD design? How to receive input from client

    Ans.

    HLD design stands for High Level Design, it is a design document that describes the overall system architecture and design.

    • HLD design outlines the structure of the system, including components, modules, interfaces, and data for the system.

    • It focuses on the overall system design rather than detailed design of individual components.

    • To receive input from the client for HLD design, conduct meetings, interviews, surveys, and workshops to gather requirements and preferences.

    • Client ...read more

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    Q5. Do you have any technical certifications?How many programming languages do you know?

    Ans.

    Yes, I have technical certifications and I know multiple programming languages.

    • I have a certification in GIS from Esri

    • I am also certified in Python programming language

    • I am proficient in Java, C++, and SQL

    • I am constantly learning and improving my skills

    Q6. What is circuit manager? How to create it.

    Ans.

    Circuit Manager is a tool used in GIS to manage and organize electrical circuits.

    • Circuit Manager is used to create, edit, and manage electrical circuits in GIS software.

    • It allows users to define the connectivity between different electrical components.

    • Users can assign attributes to circuits such as voltage, current, and resistance.

    • Circuit Manager helps in analyzing and simulating electrical networks.

    • To create a circuit manager, users typically need to define the components an...read more

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    Q7. What is difference between arc gis and q gis...?

    Ans.

    ArcGIS is a proprietary software developed by Esri, while QGIS is an open-source software. Both are used for GIS mapping and analysis.

    • ArcGIS is a proprietary software developed by Esri, while QGIS is an open-source software.

    • ArcGIS has a more user-friendly interface and advanced features, but it comes with a cost.

    • QGIS is free to use and has a strong community support for plugins and extensions.

    • Both software can perform similar GIS functions like spatial analysis, data visualiz...read more

    Q8. What is Google What is Mapping Google products Use of Google products in daily life

    Ans.

    Google is a technology company known for its search engine and various products, including mapping services.

    • Google is a technology company founded in 1998.

    • Mapping involves creating visual representations of geographic data.

    • Google Maps is a popular mapping product used for navigation and location information.

    • Google Earth provides satellite imagery and 3D views of the Earth's surface.

    • Google Street View offers panoramic street-level images for many locations.

    • Google products like...read more

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    Q9. Tell me about arc gis or other gis softwares

    Ans.

    ArcGIS is a popular GIS software used for mapping and spatial analysis.

    • ArcGIS is developed by Esri and is widely used in various industries such as urban planning, natural resource management, and emergency response.

    • It allows users to create, analyze, and visualize spatial data through maps and layers.

    • ArcGIS includes tools for geocoding, routing, and spatial analysis to help users make informed decisions based on geographic information.

    • Other popular GIS software options inclu...read more

    Q10. What is permit and how to start permit work

    Ans.

    A permit is an official document or license that allows someone to do something, such as construction or land use.

    • Permits are required for various activities like construction, land development, zoning changes, etc.

    • To start permit work, one must first determine the type of permit needed and the requirements for obtaining it.

    • Next, the applicant must fill out the necessary forms and submit them to the appropriate government agency.

    • The agency will review the application, conduct...read more

    Q11. What is the difference between Ftth and Fttb

    Ans.

    FTTH stands for Fiber to the Home, while FTTB stands for Fiber to the Building.

    • FTTH (Fiber to the Home) provides fiber optic connections directly to individual residences or buildings.

    • FTTB (Fiber to the Building) provides fiber optic connections to a central point within a building, with individual connections then distributed within the building.

    • FTTH offers higher bandwidth and faster speeds compared to FTTB.

    • FTTH is more commonly used for residential areas, while FTTB is oft...read more

    Q12. What is gis, what is coordinates.

    Ans.

    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 analyze and visualize spatial data, such as maps, satellite images, and aerial photographs.

    • Coordinates are sets of numbers used to represent a specific location on the Earth's surface.

    • Coordinates are typically expressed in latitude and longitude, with latitude representing north-south position and longit...read more

    Q13. CWDM and DWDM are muxes or splitter, explain their functions.

    Ans.

    CWDM and DWDM are multiplexers used in optical communication networks to combine multiple signals onto a single fiber or split signals into multiple fibers.

    • CWDM (Coarse Wavelength Division Multiplexing) combines multiple signals onto a single fiber by using different wavelengths of light.

    • DWDM (Dense Wavelength Division Multiplexing) also combines multiple signals onto a single fiber but with more closely spaced wavelengths for higher capacity.

    • Both CWDM and DWDM can also be us...read more

    Q14. Explain differences between design, drafting and analysing.

    Ans.

    Design involves creating a plan or concept, drafting is the process of creating detailed technical drawings, and analyzing involves evaluating data or information.

    • Design is the initial phase where ideas and concepts are developed.

    • Drafting is the technical process of creating detailed drawings based on the design.

    • Analysis involves evaluating data or information to draw conclusions or make decisions.

    • For example, in GIS engineering, designing a new map layout would involve creat...read more

    Q15. What are your experiences with GIS software?

    Ans.

    I have extensive experience with GIS software, including ArcGIS, QGIS, and Google Earth.

    • Proficient in using ArcGIS for spatial analysis and mapping

    • Familiar with QGIS for open source GIS projects

    • Skilled in utilizing Google Earth for 3D visualization and satellite imagery

    • Experience in creating custom geospatial datasets and performing geoprocessing tasks

    Q16. What is gis navigation

    Ans.

    GIS navigation is the use of geographic information systems to plan and navigate routes.

    • GIS navigation involves using spatial data to create maps and plan routes

    • It can be used for navigation in vehicles, on foot, or for planning routes for emergency responders

    • GIS navigation can also incorporate real-time data such as traffic or weather conditions

    • Examples of GIS navigation tools include Google Maps, Waze, and ArcGIS

    Q17. What is gis? Which software to use?

    Ans.

    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, analyze patterns, and make informed decisions based on spatial data.

    • It combines various data sources such as satellite imagery, aerial photography, and survey data.

    • GIS software helps in data visualization, spatial analysis, and modeling.

    • Popular GIS software includes ArcGIS, QGIS, and Google Earth.

    • GIS is us...read more

    Q18. How to find long and lat from address

    Ans.

    Use geocoding services like Google Maps API to find latitude and longitude from an address.

    • Use geocoding services like Google Maps API or OpenStreetMap API

    • Input the address into the geocoding service

    • Retrieve the latitude and longitude coordinates from the service's response

    Q19. Which software you are using college

    Ans.

    I primarily used ArcGIS and QGIS in college for GIS projects.

    • ArcGIS

    • QGIS

    Q20. How to create gdb or shapefile in ArcGIS

    Ans.

    To create a gdb or shapefile in ArcGIS, use the 'Create File Geodatabase' or 'Create Feature Class' tool.

    • In ArcGIS, go to the 'Catalog' window and navigate to the desired location for the gdb or shapefile.

    • Right-click on the folder or geodatabase where you want to create the gdb or shapefile.

    • Select 'New' and choose 'File Geodatabase' to create a gdb or 'Feature Class' to create a shapefile.

    • Provide a name for the gdb or shapefile and specify the coordinate system and other prop...read more

    Q21. What is gis What gd&t symbols

    Ans.

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

    • GIS is used to create maps, analyze patterns, and make informed decisions based on spatial data.

    • It combines various data sources such as satellite imagery, aerial photography, and GPS data.

    • GIS can be used in various fields like urban planning, environmental management, and emergency response.

    • Examples of GIS software include ArcGIS, QGIS, ...read more

    Q22. Why do you choose this stream?

    Ans.

    I chose GIS engineering because of my passion for geography, technology, and problem-solving.

    • Passion for geography and maps

    • Interest in technology and data analysis

    • Enjoy problem-solving and spatial reasoning

    • Opportunity to work on diverse projects and industries

    Q23. What is difference between GIS ans GPS

    Ans.

    GIS is a system for capturing, storing, analyzing, and managing spatial or geographic data, while GPS is a satellite-based navigation system.

    • GIS stands for Geographic Information System, used for mapping and analyzing spatial data

    • GPS stands for Global Positioning System, used for determining location on Earth's surface

    • GIS integrates different types of data such as maps, satellite images, and demographic information

    • GPS relies on a network of satellites to provide accurate loca...read more

    Q24. What is purpose of lane guidence

    Ans.

    Lane guidance is used to provide drivers with visual and/or audio cues to help them stay in the correct lane while driving.

    • Lane guidance helps prevent missed exits or turns

    • It enhances safety by reducing last-minute lane changes

    • Lane guidance can be provided through GPS navigation systems or road signs

    Q25. What is the use duct...?

    Ans.

    A duct is a tube or passage that carries air, liquid, or other substances.

    • Ducts are commonly used in HVAC systems to distribute air throughout a building.

    • In GIS, ducts can represent underground utility lines such as water pipes or electrical cables.

    • Ducts can also refer to channels in the body that carry fluids, such as the bile duct or tear duct.

    Q26. What do you know about gis eng? ?

    Ans.

    GIS Eng involves designing, implementing, and maintaining GIS systems to capture, store, manipulate, analyze, and present geospatial data.

    • GIS Eng uses software like ArcGIS, QGIS, and MapInfo to create maps and analyze data

    • GIS Eng is used in various industries like urban planning, environmental management, and emergency response

    • GIS Eng requires knowledge of geospatial data formats, database management, and programming languages like Python

    • GIS Eng can involve fieldwork to colle...read more

    Q27. What is gis how to use

    Ans.

    GIS stands for Geographic Information System, a technology used to analyze, visualize, and interpret spatial data.

    • GIS allows users to capture, store, manipulate, analyze, manage, and present spatial or geographic data.

    • It is used in various industries such as urban planning, natural resource management, transportation, and emergency response.

    • Examples of GIS software include ArcGIS, QGIS, and Google Earth.

    Q28. how to run topology in arcgis

    Ans.

    Topology in ArcGIS is run using the 'Check Geometry' tool to identify and fix errors in spatial relationships.

    • Open ArcGIS and load the dataset you want to run topology on.

    • Go to the 'Geoprocessing' menu and select 'ArcToolbox'.

    • Expand 'Data Management Tools' and then 'Features'.

    • Double-click on 'Check Geometry' tool to open it.

    • Select the input dataset and specify the output location.

    • Choose the appropriate topology rules to check for errors.

    • Click 'OK' to run the topology check.

    • Re...read more

    Q29. What is OLT explain it ?

    Ans.

    OLT stands for Optical Line Terminal, a device in a passive optical network that serves as the endpoint of a network.

    • OLT is responsible for converting electrical signals into optical signals for transmission over fiber optic cables.

    • It connects the PON (Passive Optical Network) to the service provider's network.

    • OLT manages the traffic between the ONU (Optical Network Unit) and the service provider's network.

    • Examples of OLT manufacturers include Huawei, ZTE, and Nokia.

    Q30. What is cad What gd&t symbols

    Ans.

    CAD stands for Computer-Aided Design. GD&T symbols are used in engineering drawings to specify geometric tolerances.

    • CAD is a technology used to create, modify, and analyze designs in various industries.

    • GD&T symbols are graphical representations used to communicate tolerances and dimensions in engineering drawings.

    • Examples of GD&T symbols include concentricity, perpendicularity, and position symbols.

    Q31. Elaborate about EPON Designing?

    Ans.

    EPON Designing refers to the process of designing Ethernet Passive Optical Networks for efficient data transmission.

    • EPONs use passive optical splitters to distribute data to multiple end users

    • EPONs are cost-effective and scalable for delivering high-speed internet access

    • EPONs typically operate at speeds of 1 Gbps or 10 Gbps

    • EPONs are commonly used in fiber-to-the-home (FTTH) networks

    Q32. Explain Coaxial and power network?

    Ans.

    Coaxial network is a type of cable network that uses a central conductor surrounded by an insulating layer and a shield. Power network refers to the distribution of electrical power through a network of cables and transformers.

    • Coaxial network consists of a central conductor, insulating layer, and shield to transmit data signals.

    • Coaxial cables are commonly used in cable television, internet connections, and networking applications.

    • Power network involves the distribution of ele...read more

    Q33. What is AutoCAD tool.

    Ans.

    AutoCAD is a computer-aided design software used for creating 2D and 3D drawings and models.

    • AutoCAD is widely used in various industries such as architecture, engineering, and construction.

    • It allows users to create precise drawings and models with tools like lines, shapes, and dimensions.

    • AutoCAD supports both 2D drafting and 3D modeling, making it versatile for different design needs.

    • Users can also add annotations, text, and symbols to their drawings for better communication....read more

    Q34. Have you ever used maps

    Ans.

    Yes, I have used maps extensively in my work as a GIS Engineer.

    • I have experience working with various types of maps, including topographic, thematic, and digital maps.

    • I have used maps to analyze spatial data and create visual representations of data.

    • I have also used maps to perform geocoding and geolocation tasks.

    • Examples of software I have used to work with maps include ArcGIS, QGIS, and Google Maps API.

    Q35. What is joint and uses

    Ans.

    Joint is a point where two or more bones meet. It allows movement and provides support to the body.

    • Joints are classified based on their structure and function.

    • Some common types of joints are hinge joint, ball and socket joint, and pivot joint.

    • Joints can be affected by various diseases such as arthritis and osteoporosis.

    • Proper exercise and diet can help maintain healthy joints.

    • Joints are used in GIS to represent the connection between two or more features or objects.

    Q36. What is gis and lidar

    Ans.

    GIS (Geographic Information System) is a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data. LiDAR (Light Detection and Ranging) is a remote sensing method that uses light in the form of a pulsed laser to measure variable distances to the Earth.

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

    • LiDAR is used to create high-resolution maps, digital elevation models, and 3D...read more

    Q37. What do you know about mapping

    Ans.

    Mapping involves creating visual representations of geographic data using GIS technology.

    • Mapping involves the use of geographic information systems (GIS) technology

    • It helps in creating visual representations of spatial data

    • Maps can be used for various purposes such as navigation, urban planning, and natural resource management

    Q38. Detailed explain about HFC network

    Ans.

    HFC network stands for Hybrid Fiber-Coaxial network, which is a type of broadband network that combines fiber optic and coaxial cable technologies.

    • HFC networks are commonly used by cable TV and internet providers to deliver high-speed internet and television services to customers.

    • Fiber optic cables are used for the backbone of the network, providing high bandwidth and fast data transmission.

    • Coaxial cables are used for the last mile connection to individual homes or businesses...read more

    Q39. Which software you use college

    Ans.

    I primarily used ArcGIS and QGIS during my college studies.

    • ArcGIS

    • QGIS

    Q40. What is Radio frequency?

    Ans.

    Radio frequency refers to the range of electromagnetic frequencies above audio frequencies and below infrared light.

    • Radio frequency is used for communication and broadcasting purposes.

    • It is commonly used in technologies such as Wi-Fi, Bluetooth, and cell phones.

    • RF signals can be transmitted wirelessly through antennas.

    • RF waves have different frequencies and wavelengths, allowing for various applications.

    • Examples of RF bands include AM radio (535 kHz - 1.7 MHz) and FM radio (8...read more

    Q41. Working in which software

    Ans.

    I have experience working with various GIS software including ArcGIS, QGIS, and MapInfo.

    • ArcGIS

    • QGIS

    • MapInfo

    Q42. Advantages and disadvantages of gis

    Ans.

    GIS has advantages like spatial analysis and data visualization, but also disadvantages like cost and complexity.

    • Advantages: spatial analysis, data visualization, decision-making support

    • Disadvantages: cost, complexity, data accuracy issues

    • Examples: GIS can be used to analyze crime patterns in a city, but may require expensive software and training

    Q43. What is model builder

    Ans.

    Model Builder is a visual programming tool in GIS software that allows users to create, edit, and manage geoprocessing models.

    • Model Builder is used in GIS software like ArcGIS to automate geoprocessing tasks.

    • It allows users to visually create workflows by connecting geoprocessing tools and data inputs/outputs.

    • Users can save and share models for repeated use or to collaborate with others.

    • Model Builder can help streamline complex geoprocessing tasks and improve efficiency in GI...read more

    Q44. What is the gis

    Ans.

    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 visualize, interpret, and analyze data related to locations on Earth's surface.

    • It integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information.

    • Examples of GIS applications include mapping, urban planning, environmental monitoring, an...read more

    Q45. Where do you use gps

    Ans.

    I use GPS for mapping, navigation, surveying, asset tracking, and geocoding.

    • Mapping: Creating maps using GPS coordinates

    • Navigation: Finding routes and directions using GPS

    • Surveying: Collecting precise location data for various purposes

    • Asset tracking: Monitoring the location of vehicles or equipment

    • Geocoding: Converting addresses into GPS coordinates

    Q46. What is recoding

    Ans.

    Recoding is the process of changing the values of a variable in a dataset to new values based on certain criteria.

    • Recoding is commonly used in data analysis to simplify or reclassify data for easier interpretation.

    • It involves creating new categories or grouping existing categories together.

    • For example, recoding age into age groups (e.g. 0-18, 19-30, 31-50) for analysis purposes.

    Q47. What' is gis ?

    Ans.

    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 such as satellite imagery, GPS data, and survey data.

    • GIS can be used in various fields like urban planning, environmental management, and transportation.

    • Examples of GIS software include ArcGIS, QGIS, and Google Earth.

    • GIS helps in makin...read more

    Q48. What is geocoding

    Ans.

    Geocoding is the process of converting addresses into geographic coordinates (latitude and longitude).

    • Geocoding helps in mapping locations on a map

    • It is used in GPS systems, online mapping services, and location-based services

    • Examples include Google Maps API, Bing Maps API

    Q49. What is meant by GIS

    Ans.

    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 on maps

    • It integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information

    • Examples of GIS applications include mapping natural disasters, urban planning, and environmental monitoring

    Q50. 5 components of arcgis

    Ans.

    The 5 components of ArcGIS are ArcMap, ArcCatalog, ArcToolbox, ArcGlobe, and ArcScene.

    • ArcMap is the main mapping application for creating and analyzing geographic data

    • ArcCatalog is used for organizing and managing GIS data

    • ArcToolbox contains tools for geoprocessing tasks

    • ArcGlobe is a 3D globe application for visualizing spatial data

    • ArcScene is a 3D visualization application for creating realistic scenes

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