McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Information Technology Engineering (IT) .
| 51. |
___________is a method of incremental conceptual clustering. |
| A. | CORBA |
| B. | OLAP |
| C. | COBWEB |
| D. | STING |
| Answer» C. COBWEB | |
| 52. |
Effect of one attribute value on a given class is independent of values of other attribute is called____________. |
| A. | Value independence |
| B. | Class conditional independence |
| C. | Conditional independence |
| D. | Unconditional independence |
| Answer» A. Value independence | |
| 53. |
The main organizational justification for implementing a data warehouse is to provide__________. |
| A. | Cheaper ways of handling transportation |
| B. | Decision support |
| C. | Storing large volume of data |
| D. | Access to data |
| Answer» C. Storing large volume of data | |
| 54. |
Multidimensional database is otherwise known as___________. |
| A. | RDBMS |
| B. | DBMS |
| C. | EXTENDED RDBMS |
| D. | EXTENDED DBMS |
| Answer» B. DBMS | |
| 55. |
Data warehouse architecture is based on___________. |
| A. | DBMS |
| B. | RDBMS |
| C. | Sybase |
| D. | SQL Server |
| Answer» B. RDBMS | |
| 56. |
Source data from the warehouse comes from__________. |
| A. | ODS |
| B. | TDS |
| C. | MDDB |
| D. | ORDBMS |
| Answer» A. ODS | |
| 57. |
___________is a data transformation process. |
| A. | Comparison |
| B. | Projection |
| C. | Selection |
| D. | Filtering |
| Answer» D. Filtering | |
| 58. |
The technology area associated with CRM is__________. |
| A. | Specialization |
| B. | Generalization |
| C. | Personalization |
| D. | Summarization |
| Answer» C. Personalization | |
| 59. |
SMP stands for________. |
| A. | Symmetric Multiprocessor |
| B. | Symmetric Multiprogramming |
| C. | Symmetric Metaprogramming |
| D. | Symmetric Microprogramming |
| Answer» A. Symmetric Multiprocessor | |
| 60. |
_____________are designed to overcome any limitations placed on the warehouse by the nature of the relational data model. |
| A. | Operational database |
| B. | Relational database |
| C. | Multidimensional database |
| D. | Data repository |
| Answer» C. Multidimensional database | |
| 61. |
__________are designed to overcome any limitations placed on the warehouse by the nature of the relational data model. |
| A. | Operational database |
| B. | Relational database |
| C. | Multidimensional database |
| D. | Data repository |
| Answer» C. Multidimensional database | |
| 62. |
MDDB stands for _______________. |
| A. | Multiple data doubling |
| B. | Multidimensional databases |
| C. | Multiple double dimension |
| D. | Multi-dimension doubling |
| Answer» B. Multidimensional databases | |
| 63. |
____________is data about data. |
| A. | Metadata |
| B. | Microdata |
| C. | Minidata |
| D. | Multidata |
| Answer» A. Metadata | |
| 64. |
_____________is an important functional component of the metadata. |
| A. | Digital directory |
| B. | Repository |
| C. | Information directory |
| D. | Data dictionary |
| Answer» C. Information directory | |
| 65. |
EIS stands for____________. |
| A. | Extended interface system |
| B. | Executive interface system |
| C. | Executive information system |
| D. | Extendable information system |
| Answer» C. Executive information system | |
| 66. |
____________is data collected from natural systems. |
| A. | MRI scan |
| B. | ODS data |
| C. | Statistical data |
| D. | Historical data |
| Answer» A. MRI scan | |
| 67. |
__________is an example of application development environments. |
| A. | Visual Basic |
| B. | Oracle |
| C. | Sybase |
| D. | SQL Server |
| Answer» A. Visual Basic | |
| 68. |
The term that is not associated with data cleaning process is____________. |
| A. | Domain consistency |
| B. | Deduplication |
| C. | Disambiguation |
| D. | Segmentation |
| Answer» D. Segmentation | |
| 69. |
__________are some popular OLAP tools. |
| A. | Metacube, Informix |
| B. | Oracle Express, Essbase |
| C. | HOLAP |
| D. | MOLAP |
| Answer» A. Metacube, Informix | |
| 70. |
Capability of data mining is to build __________models. |
| A. | Retrospective |
| B. | Interrogative |
| C. | Predictive |
| D. | Imperative |
| Answer» C. Predictive | |
| 71. |
________is a process of determining the preference of customer's majority. |
| A. | Association |
| B. | Preferencing |
| C. | Segmentation |
| D. | Classification |
| Answer» B. Preferencing | |
| 72. |
Strategic value of data mining is_______. |
| A. | Cost-sensitive |
| B. | Work-sensitive |
| C. | Time-sensitive |
| D. | Technical-sensitive |
| Answer» C. Time-sensitive | |
| 73. |
___________proposed the approach for data integration issues. |
| A. | Ralph Campbell |
| B. | Ralph Kimball |
| C. | John Raphlin |
| D. | James Gosling |
| Answer» B. Ralph Kimball | |
| 74. |
The terms equality and roll up are associated with__________. |
| A. | OLAP |
| B. | Visualization |
| C. | Data mart |
| D. | Decision tree |
| Answer» C. Data mart | |
| 75. |
Exceptional reporting in data warehousing is otherwise called as__________. |
| A. | Exception |
| B. | Alerts |
| C. | Errors |
| D. | Bugs |
| Answer» B. Alerts | |
| 76. |
_________is a metadata repository. |
| A. | Prism solution directory manager |
| B. | CORBA |
| C. | STUNT |
| D. | COBWEB |
| Answer» A. Prism solution directory manager | |
| 77. |
_________is an expensive process in building an expert system. |
| A. | Analysis |
| B. | Study |
| C. | Design |
| D. | Information collection |
| Answer» D. Information collection | |
| 78. |
The full form of KDD is__________. |
| A. | Knowledge database |
| B. | Knowledge discovery in database |
| C. | Knowledge data house |
| D. | Knowledge data definition |
| Answer» B. Knowledge discovery in database | |
| 79. |
The first International conference on KDD was held in the year_________. |
| A. | 1996 |
| B. | 1997 |
| C. | 1995 |
| D. | 1994 |
| Answer» C. 1995 | |
| 80. |
Removing duplicate records is a process called____________. |
| A. | Recovery |
| B. | Data cleaning |
| C. | Data cleansing |
| D. | Data pruning |
| Answer» B. Data cleaning | |
| 81. |
__________contains information that gives users an easy-to-understand perspective of the information stored in the data warehouse. |
| A. | Business metadata |
| B. | Technical metadata |
| C. | Operational metadata |
| D. | Financial metadata |
| Answer» A. Business metadata | |
| 82. |
_________helps to integrate, maintain and view the contents of the data warehousing system. |
| A. | Business directory |
| B. | Information directory |
| C. | Data dictionary |
| D. | Database |
| Answer» B. Information directory | |
| 83. |
Discovery of cross-sales opportunities is called _________. |
| A. | Segmentation |
| B. | Visualization |
| C. | Correction |
| D. | Association |
| Answer» D. Association | |
| 84. |
Data marts that incorporate data mining tools to extract sets of data are called_________. |
| A. | Independent data mart |
| B. | Dependent data marts |
| C. | Intra-entry data mart |
| D. | Inter-entry data mart |
| Answer» B. Dependent data marts | |
| 85. |
__________can generate programs itself, enabling it to carry out new tasks. |
| A. | Automated system |
| B. | Decision making system |
| C. | Self-learning system |
| D. | Productivity system |
| Answer» D. Productivity system | |
| 86. |
The power of self-learning system lies in___________. |
| A. | Cost |
| B. | Speed |
| C. | Accuracy |
| D. | Simplicity |
| Answer» C. Accuracy | |
| 87. |
Building the informational database is done with the help of ___________. |
| A. | Transformation or propagation tools |
| B. | Transformation tools only |
| C. | Propagation tools only |
| D. | Extraction tools |
| Answer» A. Transformation or propagation tools | |
| 88. |
How many components are there in a data warehouse? |
| A. | Two |
| B. | Three |
| C. | Four |
| D. | Five |
| Answer» D. Five | |
| 89. |
Which of the following is not a component of a data warehouse? |
| A. | Metadata |
| B. | Current detail data |
| C. | Lightly summarized data |
| D. | Component Key |
| Answer» D. Component Key | |
| 90. |
___________is data that is distilled from the low level of detail found at the current detailed leve. |
| A. | Highly summarized data |
| B. | Lightly summarized data |
| C. | Metadata |
| D. | Older detail data |
| Answer» B. Lightly summarized data | |
| 91. |
Highly summarized data is __________. |
| A. | Compact and easily accessible |
| B. | Compact and expensive |
| C. | Compact and hardly accessible |
| D. | Compact |
| Answer» A. Compact and easily accessible | |
| 92. |
A directory to help the DSS analyst locate the contents of the data warehouse isseen in __________. |
| A. | Current detail data |
| B. | Lightly summarized data |
| C. | Metadata |
| D. | Older detail data |
| Answer» C. Metadata | |
| 93. |
Metadata contains at least__________. |
| A. | The structure of the data |
| B. | The algorithms used for summarization |
| C. | The mapping from the operational environment to the data warehouse |
| D. | All of the above |
| Answer» D. All of the above | |
| 94. |
Which of the following is not a old detail storage medium? |
| A. | Phot Optical Storage |
| B. | RAID |
| C. | Microfinche |
| D. | Pen drive |
| Answer» D. Pen drive | |
| 95. |
The data from the operational environment enter_____________of data warehouse. |
| A. | Current detail data |
| B. | Older detail data |
| C. | Lightly summarized data |
| D. | Highly summarized data |
| Answer» A. Current detail data | |
| 96. |
The data in current detail level resides till__________event occurs. |
| A. | Purge |
| B. | Summarization |
| C. | Archieve |
| D. | D All of the above |
| Answer» D. D All of the above | |
| 97. |
The dimension tables describe the __________. |
| A. | Entities |
| B. | Facts |
| C. | Keys |
| D. | Units of measures |
| Answer» B. Facts | |
| 98. |
The granularity of the fact is the ___________ of detail at which it is recorded. |
| A. | Transformation |
| B. | Summarization |
| C. | Level |
| D. | Tr |
| Answer» A. Transformation | |
| 99. |
Which of the following is not a primary grain in analytical modeling. |
| A. | Transaction |
| B. | Periodic snapshot |
| C. | Accumulating snapshot |
| D. | All of the above |
| Answer» B. Periodic snapshot | |
| 100. |
Granularity is determined by___________. |
| A. | Number of parts to a key |
| B. | Granularity of those parts |
| C. | Both A and B |
| D. | None of the above |
| Answer» C. Both A and B | |
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