ArcGIS provides an infrastructure for making maps and geographic information available throughout an organization, across a community, and openly on the Web. Applying location-based analysis to business practices are some of the unique set of capabilities offered by ArcGIS. Here in this post we will check FAQs of ArcGIS and Common Question asked during Interview Question.
Que. What is KML?Ans. Keyhole Markup Language (KML) is an XML-based format for storing geographic data and associated content and is an official Open Geospatial Consortium (OGC) standard. KML is a common format for sharing geographic data with non-GIS users as it can be easily delivered on the Internet and viewed in a number of free applications, including Google Earth and ArcGIS Explorer. KML files have either a .kml or .kmz (for compressed or zipped KML files) file extension.
Que. Explain page layout.Ans. A page layout is the arrangement of map elements and their overall design on a printed page or a digital map display. It is one of the primary display views that you work with in ArcMap—primarily to create maps for printing or for export and sharing using PDF. arcPy arcGIS+python
Que. What is ArcGIS?Ans. ArcGIS is a geographic information system (GIS) for working with maps and geographic information. It is used for creating and using maps, compiling geographic data, analyzing mapped information, sharing and discovering geographic information, using maps and geographic information in a range of applications, and managing geographic information in a database. ArcGIS software—Create and Share Maps, Analytics, and Data.
Que. What is geographic coordinate systemAns. A geographic coordinate system uses a three-dimensional spherical surface to define locations on the earth. It includes an angular unit of measure, a prime meridian, and a datum (based on a spheroid). In a geographic coordinate system, a point is referenced by its longitude and latitude values.
Que. What is the purpose of georefrencing?Ans. The purpose of georeferencing is to turn nonspatial ry, such as historical air photos or maps, into spatial raster data for use in a variety of circumstances. Spatialized air photos, for example, can be used for GIS land cover analysis or to use as a baselayer on a mobile device While in the field.
Example: “I am constantly striving to stay up-to-date with the latest geospatial technologies. I attend conferences, read industry publications, and follow relevant blogs and forums to ensure that my knowledge is always current. I also take advantage of online courses and webinars to further develop my skills in this field. Finally, I’m an active member of several professional organizations related to GIS development, which provides me with access to valuable resources and networking opportunities. All of these activities help me keep abreast of the most recent advancements in the field so that I can apply them to my work.”
Integrity is a key component of GIS development. Integrity refers to the accuracy and completeness of data, which are both important for effective mapping. Your answer should show that you understand how integrity impacts your work as a GIS developer. You can describe some methods or tools you use to ensure data integrity in your previous projects.
Example: “If I were working on a GIS application and realized it was too slow to use, I would first identify the root cause of the issue. This could be due to inefficient code, an overloaded database, or something else entirely. Once I had identified the source of the problem, I would work to optimize the code or adjust the system architecture as needed to improve performance. If necessary, I could also look into using caching techniques or distributed computing solutions to further speed up the application. Finally, I would test the changes to ensure that they have improved the overall performance of the application.”