GIS MCQ
UNIT 1 :
1 GIS stands for
Geographic Information System
2 GIS deals with which kind of data
Spatial data
3 Which of the following statements is true about the capabilities of GIS
All of the above
4 By ‘spatial data’ we mean data that has
Positional values
5 What is ‘Metadata’ ?
It is ‘ data about data’
6 Key components of ‘spatial data’ quality include
All of the above
7 ‘Spatial databases’ are also known as
Geodatabases
8 Successful spatial analysis needs
All of the above
9 Which of the following is related to GIS
Euclidean space
10 A (geographic) field is a geographic phenomena for which, for every point in the study area
A value can be determined
11 The following are the examples of ‘geographic fields’
All of the above
12 Which of the following statements are true?
Both ‘1’ & ‘2’ are true
13 Fields can be
Discrete or continuous
14 Examples of ‘continuous fields’ are
All of the above
15 Which of the following is true about ‘Discrete fields’
All of the above
16 Which of the following is true about ‘Nominal Data Values’
All of the above
17 Which of the following is true about ‘Ordinal Data Values’
Bothe ‘1’ & ‘2’
18 Which of the following is true about ‘Internal Data Values’
All of the above
19 Which of the following is true about ‘ Ratio Data Values’
All of the above
20 Which of the following is true
All of the above
21 Interpolation is made possible by a principle called
Spatial Autocorrelation
22 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
Raster
23 Which of the following is true
Both ‘1’ & ‘2’
24 TIN stands for
Triangulated Irregular Network
25 Which of the following is true about ‘Delaunay Triangulation’
Both ‘1’ & ‘2’
26 The ‘boundary model’ is sometimes also called
Topological data model
27 Which of the following relationships is correct
All of the above
28 Which of the following belong to the eight spatial relationships?
All of the above
29 Which of the following statements are true about the ‘temporal dimension’
All of the above
30 Which of the following is true?
All of the above
31 Which of the following are full-fledged GIS packages
All of the above
32 A GIS package cannot be called full-fledged if the following capabilities are missing
All of the above
33 SDI stands for
Spatial Data Infrastructure
34 What are the various reasons for which DBMS is used
All of the above
35 Which of the following is true about DBMS
All of the above
36 A ‘data model’ is a language that allows the definition of
All of the above
37 Which of the following statements is true
All of the above
38 Which of the following statements is true in connection with a ‘tuple’
All of the above
39 GIS uses the information from which of the following sources?
Spatial information system
40 Among the following ____________ can be expressed as an example of hardware component.
Keyboard
41 Which of the following formats can be used for GIS output?
GIF
42 Which among the following is not related to GIS software’s?
STAAD Pro
43 Among the following, which do not come under the components of GIS?
Compiler
44 Which of the following doesn’t determine the capability of GIS?
Transferring data
45 Which of the following acts a benefit of GIS?
Maintaining geo spatial data
46 Which among the following is a server based hardware platform of GIS?
Google-maps
47 Understanding formal and informal methods of specifying “where”
Location
48 The ability to reason from knowledge of relative position
Distance
49 Understanding the importance of connections
Network
50 Drawing inferences from spatial context is called
Neighborhood and Region
UNIT 2
51 Understanding spatial scale and its significance
Scale
52 The implications of spatial variability is called
Spatial Heterogeneity
53 Understanding relationships across space is called
Spatial Dependence
54 Examples of vector data structures
All of the above
55 Which among the following is not vector data structures?
ArcInfo Grids
56 Examples of raster data structures
All of the above
57 Which among the following is not raster data structures?
ArcGIS Shape Files
58 ASCII coordinate data is example of
Vector
59 CAD is example of ----- data.
Vector
60 ArcGIS Shape Files is example of ----- data.
Vector
61 ArcInfo Coverages is example of ----- data.
Vector
62 ArcInfo Grids is example of ----- data.
Raster
63 Digital Elevation Models (DEMs) is example of ----- data.
Raster
64 Which models follows parent child relationship?
Hierarchical
65 Large index files can not maintained in this model.
Hierarchical
66 In this model the rigid structure of this model doesn’t allow alteration of tables.
Hierarchical
67 "In this model Records are connected
through pointers"
Hierarchical
68 In this model There is no connection between the elements at the same level.
Hierarchical
69 "This model captures relationships between objects using
connectivity"
Network
70 A link is an association between two records
Network
71 This model allows each record to have many parents
Network
72 "This model is allowing a natural model of relationships
between entities."
Network
73 too many relationships are easily implemented
Network
74 The model eliminated redundancy
Network
75 It enforces data integrity as a user must first define owner record
Network
76 A flat file structure is used with a relational database model
Relational
77 The columns of a table are named by attributes
Relational
78 No two rows of the same table may have identical values in all columns
Relational
79 The manager or administrator does not have to be aware of any data structure or data pointer
Relational
80 A few search commands in a relational database require more time to process compared with other database models.
Relational
81 An Object Oriented model uses functions to model spatial
Object Oriented
82 Characteristics of An Object Oriented model
All of the above
83 Following characteistics is not An Object Oriented model
Adhoc Queries
84 Following characteistics is An Object Oriented model
Generic Properties
85 semantic model is
Object Oriented
86 this model is usually managed by a spatial language
Object Oriented
87 The elements of an ERD are:
All of the above
88 a conceptual and representational model is
Object Oriented
89 Steps involved in creating an ERD include:
All of the above
90 the number of instances of one entity that can, or must, be associated with each instance of another entity.
Cardinality
91 Entities, attributes, and relationships are used to represent real-world features
real world features
92 It can be defined as verifiable facts
Data
93 It is data organized to reveal patterns, and to facilitate search.
Information
94 It can be organized in different ways, depending on the way they are collected
Spatial data
95 It is a collection of inter-related data
A database
96 characterized by attributes that are both spatial and non-spatial
A database
97 It is difficult to extract from spatial data, unless the data are organized primarily by spatial attributes.
Spatial information
98 Spatial datas are
All of the above
99 It is characterized by the use of sequential points
Vector
100 This lines are often referred to as arcs and consist of a string of vertices
Vector
UNIT 3
101 This models incorporate the use of a grid-cell data structure
Raster
102 The size of cells in a tessellated data structure is selected on the basis of the data accuracy
Raster
103 data is most often used to represent graphic or pictorial data.
Image.
104 Data can be represented at its original resolution and form without generalization
Vector
105 Direction of travel is specified using numbers
Chain encoding
106 Stores a single value for a group of cells rather than storing values for individual cells
Run length encoding
107 A raster is divided into a hierarchy of quadrants that are subdivided based on similar value pixels.
Quadtree
108 Digital elevation model (DEM) is an example of a single-band raster dataset each cell
Quadtree
109 the reduction of space, bandwidth, cost, transmission, generating time, and the storage of data.
Compression
110 Vector topological features
All of the above
111 Information about linkages among spatial objects
Connectivity
112 Information about neighbouring spatial object
Contiguity
113 Information about inclusion of one spatial object within another spatial object
Containment
114 Mechanical Scanner resoluation is
25-100m
115 Video camera resoluation is
500*500 pixel
116 CCD Camera resoluation is
up to 16000
117 CCD Scanner resoluation is
300-600 dpi
118 CRT is used by
Video camera
119 Digitization is done by drum, is called
Mechanical Scanner
120 digital still camera is called as
CCD Camera
121 Flat bed type or roll feed type scanner with linear CCD is used to digitization
CCD Scanner
122 PC peripheral scaner is
Flat bed scanner
123 the most suitable type for inputting GIS data
Large format feed scanner
124 Modes of data input
All of the above
125 Data Input Techniques are
All of the above
126 single points are recorded one at a time, or in a stream mode
Digitizing
127 Hard copy and soft copy is easily scanned by
Automatic Scanning
128 calculation and entry of coordinates is called
Coordinate Geometry
129 This binary format is a standard in the turnkey
CAD market IGDS
130 ASCII format is used by the USGS as a distribution standard
DLG
131 ASCII format is used primarily to convert to/from the Auto-cad
DXF
132 A generic ASCII format for spatial data used by the ARC/INFO
GENERATE - ARC/INFO
133 Raster data formats are
All of the above
134 ESRI file format used to store both discrete features
Grids
135 cells values are integers, often code numbers
discrete grid
136 its cell values are floating points.
Continuous grid
137 The Grids workspace are
soils
138 The Grids workspace are
Vegetation
139 hardcopy maps digitization is
automatic digitization
140 "digitization is started by placing a point that marks the beginning of the feature
" Point mode
141 the cursor is placed at the beginning of the feature a command is then sent to the computer
Stream mode
142 touching of land parcels, counties, and nation-states is called
Adjacency
143 point lies inside rather than outside an area.
Containment
144 "including junctions between streets, roads, railroads, and rivers (Very
common topological error."
Connectivity
145 Topological File Formats
All of the above
146 Grid formats are
All of the above
147 ODBC is
API
148 ODBC is using
SQL
149 The GPS time signals use highly accurate atomic clocks.
Clock synchronization
150 The device uses voice activation to describe a preferred route based on the position of the receiver
Navigation
UNIT 4
151 Viewing phenomena as continuous in space-time or as discrete
Objects and Fields
152 A systematic examination of a problem or complex entity inorder to provide new information is known
ESRI –GIS
153 Common vector analysis tools are
Buffering
154 A region that is less than or equal to aspecified distance
Buffering
155 An Example of buffering
All of the above
156 The inward buffer for a polygon is called
Setback
157 Which is used for neighborhood analysis which aims to evaluate the characteristics of the area?
Buffering
158 Which is used to subset a point, line or a polygon theme using another polygon theme?
Clip
159 Which causes the input features to form subset of multiple output feature classes?
Split
160 Which one creates a new theme by overlaying two polygon themes?
Overlay-union
161 The output theme contains the combined polygons and attributes of both themes
Clip
162 The output theme contains only the feature inside the intersecting polygons.
Split
163 Which tools let you select features and attributes in afeature classor table based on a query?
Extract
164 In which tool The output features and attributes are stored in a feature class or table?
Extract
165 In which toolset contains tools to overlay multiple feature classes to combine?
Overlay
166 In which existing sets of features into a single set of features to identify spatial relationships between the input features?
Overlay
167 In which toolset contains tools that are used to determine features within one or morefeature classesor between two feature classes?
Proximity
168 In which toolset contains tools that perform standard analysis?
Statistics
169 The analysis is used to find the shortest alternated routes between origins to
destination Netwok
170 Who will provide network based spatial analysis tools for solving complex routing problems ?
Netwok Analyst
171 The position or the layout of the centre line of the highway on the ground is called the
Alignment
172 The basic requirements of an ideal alignment between two terminal stations are
All of the above
173 The basic requirements of an ideal alignment between two terminal stations are not
Easy
174 Factor affecting Highway Alignments are
All of the above
175 Factor affecting Highway Alignments are
All of the above
176 Which factor is affecting Highway Alignments?
Economics
177 Which factor is affecting Highway Alignments?
Geometric design
178 Is Drainage affecting Highway Alignments?
True
179 Which factor is affecting Highway Alignments?
Traffic
180 Steps for constructing new highway project
All of the above
181 Steps for constructing new highway project
All of the above
182 Steps for constructing new highway project
All of the above
183 Which steps is not cover for constructing new highway project
Economics
184 Which steps is not cover for constructing new highway project
Obligatory points
185 Which steps is not cover for constructing new highway project
Drainage
186 Which steps is cover for constructing new highway project
Map study
187 Which steps is cover for constructing new highway project
Reconnaissance Survey
188 Which steps is cover for constructing new highway project
Preliminary survey
189 Which steps is cover for constructing new highway project
Location of Final Alignment
190 Which steps is cover for constructing new highway project
Detailed survey
191 Which steps is cover for constructing new highway project
Material survey
192 Which steps is cover for constructing new highway project
Earth work
193 Steps for constructing new highway project
I and II
194 Which steps is cover for constructing new highway project
Construction
195 The main purpose of traffic survey are
All of the above
196 The purpose of caring out traffic volume count are
All of the above
197 Proportion of vehicles in traffic stream is
All of the above
198 In network analysis shortest route provides
All of the above
199 In Network analysis GIS method can also be used for
route determination
200 Traditional GIS data is based on mapping
x and y-value
UNIT 5
1 EIA standards for
Environmental Impact Assessment
2 IT offers mapping of
both a & b
3 Consists of a wireless network to receive and forward the data to the data center
Fixed base station
4 _______ is a secure cloud-based information service that brings together asset condition and other survey data from across the network in real-time.
Network Intelligence Portal
5 ____ mapping assists the navigation content providers using GIS, GPS, and Remote sensing technologies instead of traditional method of manual assimilation of data for generation
Navigation
6 GIS can be used to map locations. GIS allows the creation of maps through automated mapping, data capture, and surveying analysis tools
Mapping locations
7 criteria and take action, or to see the relationships between places. This gives an additional levelof information beyond simply mapping the locations of features(2)
Mapping quantities
8 "While you can see concentrations by simply mapping the locations of features, in areas,with many features it may be difficult to see which areas have a higher concentration than others.
"
Mapping densities
9 GIS can be used to find out what's occurring within a set distance of a feature.
Mapping densities
10 GIS can be used to map the change in an area to anticipate future conditions, decide on a course of action, or to evaluate the results of an action or policy.(2)
Mapping and monitoring change
11 GIS services for Natural Resource Management to the following sectors
All the above
12 Which is not a GIS services for Natural Resource Management to the following sectors
Buffer
13 The services offered by a part of its GIS for Natural Resource Management are
All the above
14 Which is not a services offered by a part of its GIS for Natural Resource Management are
Environment
15 GIS for Environmental Management experience in the following fields
All the above
16 Which is not a GIS for Environmental Management experience in the following fields
Overlay
17 _____ is an important policy initiative to conserve natural resources and environment
EIA
18 _______ is the process of ranking different parts of an area according to the degrees of actual or potential hazard from landslides.
Landslide hazard zonation
19 GIS helps to document the need for federal disaster relief funds, when appropriate and can be utilized by insurance agencies to assist in assessing monetary value of property loss.(2)
Estimation of flood damage
20 ________ provides resource information about an area
Soil Mapping
21 ______ contribute to a healthy environment and retain water during dry periods, thus keeping the water table high and relatively stable
Wetlands
22 Water availability for irrigation purposes for any area is vital for crop production in that region.
Irrigation management
23 _______ to human life and environment include hot avalanches, hot particles gas,clouds, lava flows and flooding.
Volcanic Hazard
24 The GIS for mining and geology GIS services at IT can assist the industry by providing
All the above
25 Which is not a GIS for mining and geology GIS services at IT can assist the industry by providing
Volcanic Hazard
26 operational and research teams have been using GIS for oil and gas for the following.
All the above
27 Which is not an operational and research teams have been using GIS for oil and gas for the following.
Soil Mapping
28 _______ has been playing an increasingly important role in crop production throughout the world by helping farmers in increasing production(2)
Agriculture
29 _______ mapping services such as Forestry GIS are often required by government and commercial agencies to perform value assessments for certification, funding, policy recommendations and regulatory compliances
Forestry
30 The company uses different spatial, spectral and temporal resolutions for (2)
All the above
31 _______ its major contribution is to give us with an organized set of data which can help professionals to combat complex scenarios relating to the selection of site, environmental impact, study of ecosystem, managing risk regarding the use of natural resources (2)
Planning
32 Precise and accurate data is the core driving factor of any successful project
Data Collection
33 ____ is one of the major and most influential phases of infrastructure life cycle
Analysis
34 ____ is the stage when all layout plans and paper work design come into existence in the real World
Construction
35 ____ are controlled by modeling of site data and compared by the baselines prepared in planning phase
Operations
36 GIS helps in generating soil maps and geology maps of the area that needs to be investigated.
Soil and foundation
37 For designing, modelling, scheduling work flow and for maintenance of building, GIS geo-databases can be created which will be immensely useful and saves lot of time.(2)
Structural engineering
38 Along with Infrastructure management, GIS can be employed to calculate the costs; do site suitability analysis which will save lot of time (2)
Construction management
39 ______ is boosted with the help of GIS. Once the database is created (It might take lot of time and needs constant up gradation too) and network analysis is performed, it becomes immensely useful to predict the traffic conditions.
Traffic Engineering
40 _____ is a primary concern for all vehicle owners. Owners as well as researchers are always on the lookout for new and improved security systems for their vehicles.(2)
Vehicle Tracking
41 AVL standards for
Automatic Vehicle Location
42 GPS Standards for
Global Positioning System
43 is the technology used to determine the location of a vehicle using different methods like GPS and other radio navigation systems operating through satellites and ground based stations.(2)
Vehicle Tracking System
44 ____ consists of modern hardware and software components enabling one to track their vehicle online or offline.
System
45 ______ is the hardware component attached to the vehicle having either a GPS/GSM modem.
Vehicle unit
46 Consists of a wireless network to receive and forward the data to the data center
Fixed base station
47 The position information or the coordinates of each visiting points are stored in a database, which later can be viewed in a display screen using digital maps.(2)
Database and Software
48 GIS helps organizations to locate and store information about their assets. Operations and maintenance staff can also deploy their enterprise and mobile workforce.(2)
Assets Management
49 Geographic Information Systems are used in the distribution of products, production rate, location of shops and their selling rate. These can also be monitored by using a GIS system.(2)
Dairy Industry
50 ____ can get all the information they need on a click, measuring distance, finding hotels, restaurants and even navigate to their respective links(2)
Tourism
From Electron posts
Q1. GIS stands for
- Geographic Information System
- Generic Information System
- Geological Information System
- Geographic Information Sharing
Answer : 1
Q2. GIS deals with which kind of data
- Numeric data
- Binary data
- Spatial data
- Complex data
Answer : 3
Q3. Which of the following statements is true about the capabilities of GIS
- Data capture and preparation
- Data management, including storage and maintenance
- Data manipulation and analysis
- Data presentation
- All of the above
Answer : 5
Q4. By ‘spatial data’ we mean data that has
- Complex values
- Positional values
- Graphic values
- Decimal values
Answer : 2
Q5. What is ‘Metadata’ ?
- It is ‘ data about data’
- It is ‘meteorological data’
- It is ‘oceanic data’
- It is ‘contour data’
Answer : 1
Q6. Key components of ‘spatial data’ quality include
- Positional accuracy
- Temporal accuracy
- Lineage and completeness
- Logical consistency
- All of the above
Answer : 5
Q7. ‘Spatial databases’ are also known as
- Geodatabases
- Monodatabases
- Concurrent databases
- None of the above
Answer : 1
Q8. Successful spatial analysis needs
- Appropriate software
- Appropriate hardware
- Competent user
- All of the above
Answer : 4
Geographic Information & Spatial Data Types
Q9. Which of the following is related to GIS
- Euclidean space
- Ramanujan space
- Pythagorian space
- None of the above
Answer : 1
Q10. A (geographic) field is a geographic phenomena for which, for every point in the study area
- A value can be determined
- A value cannot be determined
- A value is not relevant
- A value is missing
Answer : 1
Q11. The following are the examples of ‘geographic fields’
- Air temperature
- Barometric pressure
- Elevation
- All of the above
Answer : 4
Q12.Which of the following statements are true?
- Natural phenomena are usually fields
- Man-made phenomena are usually objects
- Both ‘1’ & ‘2’ are true
- None of the above
Answer : 3
Q13. Fields can be
- Discrete only
- Continuous only
- Discrete or continuous
- None of the above
Answer : 3
Q14. Examples of ‘continuous fields’ are
- Air temperature
- Barometric pressure
- Soil salinity
- Elevation
- All of the above
Answer : 5
Q15. Which of the following is true about ‘Discrete fields’
- Discrete fields divide the study space in mutually exclusive, bounded parts, with all locations in one part having the same field value
- ‘Land classification’ is an example of discrete fields
- Discrete fields make use of ‘bounded’ features
- All of the above
Answer : 4
Q16. Which of the following is true about ‘Nominal Data Values’
- They are values that provide a name or identifier so that we can discriminate between different values
- True computations cannot be done with these values
- When the values assigned are sorted according to some set of non-overlapping categories, they are called ‘categorical data’
- All of the above
Answer : 4
Q17. Which of the following is true about ‘Ordinal Data Values’
- They are date values that can be put in some natural sequence but that do not allow any other type of computation
- An example of Ordinal data value is classifying household income as ‘low’, ‘average’ or ‘high’
- None of the above
- Bothe ‘1’ & ‘2’
Answer : 4
Q18. Which of the following is true about ‘Internal Data Values’
- They are quantities, in that they allow simple forms of computation like addition & subtraction
- They do not support multiplication or division
- Centigrade temperatures are internal data values
- All of the above
Answer : 4
Q19. Which of the following is true about ‘ Ratio Data Values’
- They allow most, if not all, forms of arithmetic computation
- Multiplication & division of values are possible
- They have a natural zero value
- Continuous fields can have ratio data values
- All of the above
Answer : 5
Q20. Which of the following is true
- Nominal & categorical data values are referred to as ‘qualitative data’
- Internal & Ratio data is known as ‘quantitative data’
- Ordinal data refers to a ranking scheme or some kind of hierarchical phenomena
- All of the above
Answer : 4
Q21. Interpolation is made possible by a principle called
- Spatial Autocorrelation
- Spatial auto-correction
- Thematic Autocorrelation
- Thematic auto-correction
Answer : 1
Q22. 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
- Tobler’s first low of Geography
- Kepler’s first law of Geography
- Anthony’s first law of Geography
- Thompson’s first law of Geography
Answer: 1
Q23. 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
- Crystal
- Raster
- Segment
- Polygon
Answer : 2
Q24. Which of the following is true
- Tessellations partition the study space into cells & assign a value to each cell
- A raster is a regular tessellation with square cells (by far the most commonly used)
- Both ‘1’ & ‘2’
- None of the above
Answer : 3
Q25. TIN stands for
- Traffic Internet Network
- Triangulated Irregular Network
- Temporal Interest Network
- Temperature Interface Node
Answer : 2
Q26. Which of the following is true about ‘Delaunay Triangulation’
- The triangles are as equilateral s they can be
- For each triangle, the circumcircle through its anchor points does not contain any other anchor point
- Both ‘1’ & ‘2’
- None of the above
Answer : 3
Q27. The ‘boundary model’ is sometimes also called
- Topological data model
- Temporal data model
- Topological discrete model
- Temporal discrete model
Answer : 1
Q28. Which of the following relationships is correct
- Point : (0-Simplex)
- Line segment : (1-simplex)
- Triangle : (2-simplex)
- Tetrahedron : (3-simplex)
- All of the above
Answer : 5
Q29. Which of the following belong to the eight spatial relationships?
- Disjoint, meets, equals
- Inside, covered by
- Contains, covers, overlaps
- All of the above
Answer : 4
Q30. Which of the following statements are true about the ‘temporal dimension’
- Time can be measured along a ‘discrete’ or ‘continuous’ scale.
- Valid time (or world time) is the time when an event really happened, or a string of events took place.
- Time can be considered to be ‘linear’ extending from past to the present (‘now’), & into the future
- When measuring time, we speak of granularity as the precision of a time value in a GIS or database.
- Time can be represented as ‘absolute’ or ‘relative’
- All of the above
Answer : 6
Q31. Which of the following is true?
- ‘Fields’ are geographic phenomena that occur everywhere in the study area
- ‘Objects’ are geographic phenomena that occur ‘sparsely’ over the study area
- Fields can be continuous or discrete
- Objects can be classified based on location, shape, size & orientation
- All of the above
Answer : 5
Data Management & Processing Systems
Q32. Which of the following are full-fledged GIS packages
- ILWIS
- GeoMedia
- ArcGIS
- Corp
- All of the above
Answer : 5
Q33. A GIS package cannot be called full-fledged if the following capabilities are missing
- Data capture and preparation
- Data storage
- Data analysis
- Presentation of spatial data
- All of the above
Answer : 5
Q34. SDI stands for
- Spatial Data Interface
- Spatial Data Infrastructure
- Spatial Data Intention
- Spatial Data International
Answer : 2
Q35. DBMS stands for
- Database Management System
- Database Monitoring System
- Database Manufacturing System
- Database Mixing Station
Answer : 1
Q36. What are the various reasons for which DBMS is used
- A DBMS supports the storage and manipulation of very large data sets
- A DBMS can be instructed to guard over data correctness
- A DBMS supports the concurrent use of the same data set by many users
- All of the above
Answer : 4
Q37. Which of the following is true about DBMS
- A DBMS provides a high-level, ‘declaration query language’
- A DBMS supports the use of a ‘data model’
- A DBMS includes ‘data backup’ and ‘recovery’ functions to ensure data availability at all times
- A DBMS allows the control of ‘data redundancy’
- All of the above
Answer : 5
Q38. A ‘data model’ is a language that allows the definition of
- The ‘structures’ that will be used to store the base data
- The ‘integrity constraints’ that the stored data has to obey at all moments in time
- The ‘computer programs’ used to manipulate the data
- All of the above
Answer : 4
Q39. Which of the following statements is true
- A table or relation is itself a collection of ‘tuples’ (or records)
- Each table is a collection of tuples that are similarly shaped
- An ‘attribute’ is a named field of a tuple, with which each tuple associates a value, the tuple’s ‘attribute value’
- All of the above
Answer : 4
Q40. Which of the following statements is true in connection with a ‘tuple’
- The set of tuples in a relation at some point in time is called the ‘relational instance’ at that moment
- This tuple set is always finite
- It is possible to count how many tuples are there
- Only ‘1’ & ‘2’ are true
- ‘1’ , ‘2’ & ‘3’ are true
Answer : 5
Post a Comment