Common Geographic Information System (GIS) questions and answers
Q1. What Is Chart Junk?
Chart junk : Unnecessary element round maps and diagrams
Q2. Differentiate Between Gis Commands And Tools?
Commands do no longer require interplay with the map, they just depend on surface. Tools then again require interplay with the map canvas.
Q3. What Is Hydrological Modeling?
GIS hydrological models can offer a spatial element that other hydrological models lack, with the analysis of variables together with slope, aspect and watershed or catchment location.
Q4. What Is The Difference Between Geo-coding And Geo-referencing?
Geo-coding is when you accomplice an area name or an deal with with map coordinates. Geo-referencing is the technique of associating plain digital pictures taken from a satellite or a plane with map coordinates in order that they may be overlaid on road maps.
Q5. Discuss Briefly The Impact Of The Internet On Gis
Exchange and Sharing of ideas through- electronic mail (e mail) and on-line lists.
Online forum (video conferencing).
Data trfer (File Trfer Protocol- FTP).
Browsing (web websites).
Q6. Discuss Briefly The Gis Functions
Data acquisition (spatial and non-spatial).
Data processing (data management).
Data evaluation (Spatial & statistical evaluation).
Data garage (Store facts extra efficaciously).
Data output (Maps, graphs, tables, reports).
Q7. Which Of The Following Are Important Characteristics Of A Sdss?
They are easy to apply.
They incorporate spatially explicit models.
They are designed to make full use of available facts.
Q8. List The Main Components Of Gis
People
Data
Hardware
Software
Methods
Q9. What Is Gis Data Mining?
GIS or spatial records mining is the application of statistics mining techniques to spatial information. Data mining, that's the partly computerized look for hidden styles in large databases, offers superb capacity advantages for carried out GISprimarily based decision making. Typical packages along with environmental monitoring. A function of such programs is that spatial correlation between facts measurements require the use of specialised algorithms for more efficient facts evaluation.
Q10. Do You Know Which Software Does Dc Gis Use?
The District GIS software program requirements encompass the Environmental Systems Research Institute Inc. (ESRI) merchandise and Google Inc. Geospatial offerings and software. The ESRI fashionable consists of the ArcGIS line of computer and server software program product traces. The Google wellknown consists of the Google Earth Enterprise line of server aspect merchandise and Google Maps for mashup kind programs. Other geospatial software programs and vendors can be accommodated if important to satisfy unique enterprise necessities.
Q11. What Are Gis Commands?
Commands do no longer require interaction with the map, they simply rely on floor.
Q12. What Does The Abbreviation Vrml Stand For?
Virtual Reality Modelling Language
Q13. Define Remote Sensing?
Remote sensing refers to detection and classification of items on or in earth with out physical touch, typically attained thru aerial sensors.
Q14. What Is Remote Sensing?
Remote sensing refers to detection and type of objects on or in earth with out physical contact, usually attained via aerial sensors.
Q15. What Are The Top 5 Skills A Gis Technician Must Have?
Skills in spatial data dealing with, algorithms, records conversion, model building and database programming.
Q16. What Is The Difference Between Gis And Lis
Land Information System (LIS) is ordinary to GIS, however related typically to huge scale and parcel-primarily based system which include Automated Mapping and Facilities Management (AM/FM)
Q17. Which Applications Of The Arc Gis Desktop Are You Familiar With?
I am acquainted with Arc Map, Arc catalog and Arc toolbox.
Q18. What Is The Basic Work Of A Gis Technician?
A GIS technician works carefully with end users to pick out GIS records necessities and handle technical troubles. It is likewise the task of a GIS technician to manipulate statistics maintenance and manipulation and deal with extraction activities at the side of ensuring training, planning and updating a variety of maps and drawings to be part of a GIS database.
Q19. What Is A Linked Display?
A set of graphs and maps in which gadgets are connected in separate presentations.
Q20. Name The Two Data Structures That Have The Capacity To Hold Spatial Data.
The facts systems that can preserve spatial facts consist of raster and vector.
Q21. What Are The Key Factors In Determining The Period For Record Retention?
Nature of facts, government regulations and regulations regarding facts retention and data privateness factors.
Q22. Discuss Briefly The History Of Gis Between 1960 To 2000
1963: Computing comes of age (Establishment of the Urban and Regional Information System Association URISA and the first GIS Conference in Ottowa, Canada in 1963).
1964: Canada GIS-Roger Tomlinson “Father of GIS”
1964: Harvard Lab for Computer Graphics and Spatial Analysis
Nineteen Seventies GIS software evolves swiftly (more GIS organizations appeared e.G. Intergraph, ESRI, Governmental departments delivered GIS e.G. The US Bureau of the Census)
Eighties GIS software advances appreciably (extra finances and human assets allotted for GIS, via the quit of Eighties greater than 4000 GIS/CAD software program are delivered)
Digital statistics becomes available (TIGER, World Data Bank, DIME)
1990s (integration of Raster and Vector primarily based systems, Multi-media GIS, software come to be more person friendly)
2000: Web-primarily based GIS
Q23. What Are Gis Tools?
GIS tools alternatively require interaction with the map canvas.
Q24. What Is Spatial Etl?
Spatial ETL gear provide the information processing capability of traditional Extract, Trform, Load (ETL) software program, however with a primary attention at the capability to manage spatial statistics. They provide GIS users with the potential to trlate statistics between extraordinary standards and proprietary codecs, at the same time as geometrically trforming the information en route.
Q25. Do You Know The Role Of Gps In Gis?
Competent choices can best be rendered by way of reliable facts and though GIS is an first rate records management tool, the use of it with GPS facilitates in validating the facts analysis and outcomes.
Q26. What Is A Geographic Information System?
GIS is a gadget of computer software program, hardware, facts, tactics and personnel mixed to help, manage, examine, and present information that is tied to a geographic region.
Q27. What Is Gis Technologies?
Modern GIS technology use digital records, for which various digitized statistics introduction techniques are used. The maximum commonplace technique of statistics introduction is digitization, in which a tough replica map or survey plan is trferred into a virtual medium thru using a CAD software, and georeferencing abilities.
Q28. While Using Arc Catalog, Do You Rely On The Default Templates Or Usually Go For A Customized One?
Well, it depends at the venture virtually. Some of the default templates are truly right and safe to use. I make the choice primarily based at the assignment quality.
Q29. What Is Geostatistics?
Geostatistics is a department of statistics that deals with area information, spatial records with a continuous index. It provides techniques to model spatial correlation, and are expecting values at arbitrary locations (interpolation).
Q30. List Four Of The Advantages Of Gis:
Time minimization
Accuracy development
Data may be managed effectively
High price/advantage ratio
Q31. What Is The Difference Between Automated Cartography, Cad, And Gis
GIS - Adds the analytical competencies (photo+ characteristic) at the same time as computerized cartography and CAD lack (picture only)
