GIS (Graphic Information System) and RS (Remote Sensing)

Which of the following is true about ‘Nominal Data Values’

1. They are values that provide a name or identifier so that we can discriminate between different values
2. True computations cannot be done with these values
3. When the values assigned are sorted according to some set of non-overlapping categories, they are called ‘categorical data’
4. All of the above

Answer : d

Which of the following is true about ‘Ordinal Data Values’

1. They are date values that can be put in some natural sequence but that do not allow any other type of computation
2. An example of Ordinal data value is classifying household income as ‘low’, ‘average’ or ‘high’
3. None of the above
4. Bothe ‘1’ & ‘2’

Answer : d

Which of the following is true about ‘Internal Data Values’

1. They are quantities, in that they allow simple forms of computation like addition & subtraction
2. They do not support multiplication or division
3. Centigrade temperatures are internal data values
4. All of the above

Answer : d

Which of the following is true about ‘ Ratio Data Values’

1. They allow most, if not all, forms of arithmetic computation
2. Multiplication & division of values are possible
3. They have a natural zero value
4. Continuous fields can have ratio data values
5. All of the above

Answer : e

Which of the following is true

1. Nominal & categorical data values are referred to as ‘qualitative data’
2. Internal & Ratio data is known as ‘quantitative data’
3. Ordinal data refers to a ranking scheme or some kind of hierarchical phenomena
4. All of the above

Answer : d

Interpolation is made possible by a principle called

1. Spatial Autocorrelation
2. Spatial auto-correction
3. Thematic Autocorrelation
4. Thematic auto-correction

Answer : a

The fundamental principle which refers to the fact that locations that are closer together are more likely to have similar values than locations that are far apart, is commonly referred to as

1. Tobler’s first low of Geography
2. Kepler’s first law of Geography
3. Anthony’s first law of Geography
4. Thompson’s first law of Geography

Answer: a

A ……………….. is a set of regularity spaced (and contiguous) cells with associated (field) values. The associated values represent call values, not point values. This means that the value for a cell is assumed to valid for all locations within the cell

1. Crystal
2. Raster
3. Segment
4. Polygon

Answer : b

Which of the following is true

1. Tessellations partition the study space into cells & assign a value to each cell
2. A raster is a regular tessellation with square cells (by far the most commonly used)
3. Both ‘1’ & ‘2’
4. None of the above

Answer : c

TIN stands for

1. Traffic Internet Network
2. Triangulated Irregular Network
3. Temporal Interest Network
4. Temperature Interface Node

Answer : b

Which of the following is true about ‘Delaunay Triangulation’

1. The triangles are as equilateral s they can be
2. For each triangle, the circumcircle through its anchor points does not contain any other anchor point
3. Both ‘1’ & ‘2’
4. None of the above

Answer : c

The ‘boundary model’is sometimes also called

1. Topological data model
2. Temporal data model
3. Topological discrete model
4. Temporal discrete model

Answer : a

Which of the following relationships is correct

1. Point : (0-Simplex)
2. Line segment : (1-simplex)
3. Triangle : (2-simplex)
4. Tetrahedron : (3-simplex)
5. All of the above

Answer : e

Q29. Which of the following belong to the eight spatial relationships?

1. Disjoint, meets, equals
2. Inside, covered by
3. Contains, covers, overlaps
4. All of the above

Answer : d

Which of the following statements are true about the ‘temporal dimension’

1. Time can be measured along a ‘discrete’ or ‘continuous’ scale.
2. Valid time (or world time) is the time when an event really happened, or a string of events took place.
3. Time can be considered to be ‘linear’ extending from past to the present (‘now’), & into the future
4. When measuring time, we speak of granularity as the precision of a time value in a GIS or database.
5. Time can be represented as ‘absolute’ or ‘relative’
6. All of the above

Answer : f

Which of the following is true?

1. ‘Fields’ are geographic phenomena that occur everywhere in the study area
2. ‘Objects’ are geographic phenomena that occur ‘sparsely’ over the study area
3. Fields can be continuous or discrete
4. Objects can be classified based on location, shape, size & orientation
5. All of the above

Answer : e

Which of the following are full-fledged GIS packages

1. ILWIS
2. GeoMedia
3. ArcGIS
4. Corp
5. All of the above

Answer : e

A GIS package cannot be called full-fledged if the following capabilities are missing

1. Data capture and preparation
2. Data storage
3. Data analysis
4. Presentation of spatial data
5. All of the above

Answer : e

SDI stands for

1. Spatial Data Interface
2. Spatial Data Infrastructure
3. Spatial Data Intention
4. Spatial Data International

Answer : b

DBMS stands for

1. Database Management System
2. Database Monitoring System
3. Database Manufacturing System
4. Database Mixing Station

Answer : a

What are the various reasons for which DBMS is used

1. A DBMS supports the storage and manipulation of very large data sets
2. A DBMS can be instructed to guard over data correctness
3. A DBMS supports the concurrent use of the same data set by many users
4. All of the above

Answer : d

Which of the following is true about DBMS

1. A DBMS provides a high-level, ‘declaration query language’
2. A DBMS supports the use of a ‘data model’
3. A DBMS includes ‘data backup’ and ‘recovery’ functions to ensure data availability at all times
4. A DBMS allows the control of ‘data redundancy’
5. All of the above

Answer : e

A ‘data model’ is a language that allows the definition of

1. The ‘structures’ that will be used to store the base data
2. The ‘integrity constraints’ that the stored data has to obey at all moments in time
3. The ‘computer programs’ used to manipulate the data
4. All of the above

Answer : d

Which of the following statements is true

1. A table or relation is itself a collection of ‘tuples’ (or records)
2. Each table is a collection of tuples that are similarly shaped
3. An ‘attribute’ is a named field of a tuple, with which each tuple associates a value, the tuple’s ‘attribute value’
4. All of the above

Answer : d

Q40. Which of the following statements is true in connection with a ‘tuple’

1. The set of tuples in a relation at some point in time is called the ‘relational instance’ at that moment
2. This tuple set is always finite
3. It is possible to count how many tuples are there
4. Only ‘1’ & ‘2’ are true
5. ‘1’ , ‘2’ & ‘3’ are true

Answer : e