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Geographical Information Systems And Remote Sensing Question Paper

Geographical Information Systems And Remote Sensing

Course:Bachelor Of Science In Environmental Science

Institution: Kabarak University question papers

Exam Year:2009

INSTRUCTIONS TO CANDIDATES:
Answer ALL Questions in Section A and any TWO in Section
SECTION A: (40 MARKS)
1. (a) Differentiate between the following terms:-
(i) Geographic Information System and Geographical
Information system (2 mrks)
(ii) Geomatique and Georelational Information System (2 mrks)
(iii) GIS and CAC (2 mrks)
(iv) GIS and CAD (2 mrks)
(b) State the four subsystems of GIS (4 mrks)
(c) What is the primary focus of census Information systems? (4 mrks)
2. Briefly, describe the meaning and use of Land Information System (4 mrks)
3. (a) Name two examples of discrete data (2 mrks)
(b) Describe, briefly the use of ‘points’ and ‘Lines in GIS map (2 mrks)
(c) Differentiate between ‘areas’ and ‘surfaces’ as used in GIS
(2 mrks)
4. (a) Differentiate between entity and attribute as used in GIS (2 mrks)
(b) Describe, briefly, the use of indexed files in GIS (4 mrks)
(c) Explain what a database is? (3 mrks)
(d) Name three forms of database structures used in GIS (3 mrks)
(e) Of the three forms of the database, structures you have
Named in (d) above, which one is regarded as the best and why?
(2 mrks)
SECTION B (20 MARKS)
4. Describe the vector data structure and explain how it differs from
raster in its ability to locate objects in space (10 mrks)
5. Describe the IMGRID raster data model (10 mrks)
6. Describe the general uses of GIS (10 mrks)

Geographical Information Systems And Remote Sensing Question Paper

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