GIS INTERVIEW QUESTIONS...

1. Define ArcObjects -  click here for answer
2. What are applications of ArcGIS Desktop – Ans: ArcMap, ArcCatalog and ArcToolbox
3. A __________ class represents objects that can be created directly.
4. A __________ class cannot be used to create new objects, but it is a specification for sub classes
5. A __________ can’t directly create new objects, but objects of a class can be created as a property of another class or by functions from another class.
6. What is the basic difference between a command and a tool? – A MUST question
7. Name the object that is first created when ArcMap starts running
8. An instance of ArcCatalog has _____ number of templates associated with it by default.
9. How many instances of an extension can exist per running application
10. The _________ interface is implemented in order to create a configurable extension allowing users to toggle its enabled state.
11. Which of the following the default renderer object when a new feature class is loaded?
12. Which is the interface to which a renderer object can be assigned directly?
13. Name the interface that can be used to do editing in ArcObjects
14. Name the interface that can be used to create a new feature?
16. Define Domain. What are different types of domain
17. Which is the interface that is used to find a specific version provided its name as string
18. ___________ merges the current edit version with the target version
19. What is different between direct connection and through SDE connection?
20. Define versioning and list its main events
21. How will release com objects.
22. If you want to update ‘n’ number of features in featureclass which interface will you use (performance wise)
23. What is Callback in ArcGIS Server?
24. Explain security model employed in ArcGIS Server . Whats new in 9.3?
25. What is projection ?
26. What are different projection systems and what is difference between projected coordinated system and geographic coordinate system
27. What is a scale.?
28. What is geocoding?
29. What is reverse geocoding?
30. What is geo-referencing?
31. What is geo-processing?
32. What is ArcSDE. What is database which you used?.
33. If two persons updating the particular row of the table in database?. How does the system work?.
34. How do you load data into SDE?
35. How will create a SDE view?
36. What is an interface to implemented for callback ?
37. What is difference between queryfilter and querydef?, when to use ?
38. Difference between IFeatureLayer and Layer
39. What is generic class used to hold a set of properties for database connection?
40. Whether every controls in Web ADF has a property “CallBackresults”?
41. Give few command line ArcSDE commands?
42. Difference beteween personal geodatabase and enterprise geodatabase
43. What is ASP.NET AJax model used in ArcGIS Server 9.3 and 9.3
44. What is BLOB?
45. What is difference between Overriding and overloading
46. Difference between abstract class and interface
47. What is GPS ?