McqMate
| 301. |
The full form of KDD is____________. |
| A. | knowledge database. |
| B. | knowledge discovery in database. |
| C. | knowledge data house. |
| D. | knowledge data definition. |
| Answer» C. knowledge data house. | |
| 302. |
Which of the following is not a open source data mining tool. |
| A. | WEKA |
| B. | R |
| C. | RapidMiner |
| D. | KnowledgeMiner |
| Answer» D. KnowledgeMiner | |
| 303. |
Removing duplicate records is a process called________. |
| A. | recovery. |
| B. | data cleaning. |
| C. | data cleansing. |
| D. | data pruning. |
| Answer» B. data cleaning. | |
| 304. |
The __________ 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. | |
| 305. |
A/An ___________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. | |
| 306. |
Discovery of cross-sales opportunities are called_________. |
| A. | segmentation. |
| B. | visualization. |
| C. | correction. |
| D. | association. |
| Answer» D. association. | |
| 307. |
Data marts that incorporate data mining tools to extract sets of data is called______. |
| A. | independent data mart. |
| B. | dependent data marts. |
| C. | intra-entry data mart. |
| D. | inter-entry data mart. |
| Answer» B. dependent data marts. | |
| 308. |
Which of the following problems bog down the development of data mining projects |
| A. | Financial problem. |
| B. | Lack of technical assistance. |
| C. | Lack of long-term vision. |
| D. | Legal and privacy restrictions. |
| Answer» C. Lack of long-term vision. | |
| 309. |
The ___________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. | |
| 310. |
The power of self-learning system lies in__________. |
| A. | cost. |
| B. | speed. |
| C. | accuracy. |
| D. | simplicity. |
| Answer» C. accuracy. | |
| 311. |
The human brain consists primarily of nerve cells called__________. |
| A. | dendrites. |
| B. | neurons. |
| C. | synapse. |
| D. | perceptron. |
| Answer» B. neurons. | |
| 312. |
Which of the following is not a decision tree node? |
| A. | Root node. |
| B. | Internal node. |
| C. | Leaf node. |
| D. | predicted node. |
| Answer» D. predicted node. | |
| 313. |
_______ is the closeness of repeated measurements to one another. |
| A. | Precision. |
| B. | Bias. |
| C. | Accuracy. |
| D. | non-scientific. |
| Answer» A. Precision. | |
| 314. |
Which of the following matrix consist asymmetric data? |
| A. | Sparse data matrix. |
| B. | Indentity matrix. |
| C. | Confusion matrix. |
| D. | Cross matrix. |
| Answer» A. Sparse data matrix. | |
| 315. |
A representation of data objects as columns and attributes as rows is called_________. |
| A. | matrix. |
| B. | data matrix. |
| C. | table. |
| D. | file. |
| Answer» B. data matrix. | |
| 316. |
Which of the following is not a data mining attribute? |
| A. | nominal. |
| B. | ordinal. |
| C. | interval. |
| D. | multiple. |
| Answer» D. multiple. | |
| 317. |
Patterns of machine-language program are_________. |
| A. | definitive theories. |
| B. | hypothesis. |
| C. | not-definitive theories. |
| D. | quantitative. |
| Answer» B. hypothesis. | |
| 318. |
Nominal and ordinal attributes are collectively referred to as_________ attributes. |
| A. | qualitative. |
| B. | perfect. |
| C. | consistent. |
| D. | optimized. |
| Answer» A. qualitative. | |
| 319. |
A data set can often be viewed as a collection of ______. |
| A. | data mart. |
| B. | data. |
| C. | data object. |
| D. | template. |
| Answer» C. data object. | |
| 320. |
An important element in machine learning is ________. |
| A. | flow. |
| B. | knowledge. |
| C. | observation. |
| D. | language. |
| Answer» C. observation. | |
| 321. |
Which of the following is the data mining tool? |
| A. | C. |
| B. | Weka. |
| C. | C++. |
| D. | VB. |
| Answer» B. Weka. | |
| 322. |
___________ is used for discrete target variable. |
| A. | Nominal. |
| B. | Classification. |
| C. | Clustering. |
| D. | Association. |
| Answer» B. Classification. | |
| 323. |
Data mining is an integral part of _________. |
| A. | SE. |
| B. | DBMS. |
| C. | KDD. |
| D. | OS. |
| Answer» C. KDD. | |
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