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Data Warehousing And Data Mining
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Course Name
BCA (Bachelor of Computer Application)
Subject Code BC0058 (Data Warehousing And Data Mining)
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PART - A
PART - B
PART - C
Subject : Data Warehousing And Data Mining
BC0058 : PART - B
Q. 1 | Match the following Set I a. Classes b. Clusters c. Associations d. Sequential patterns Set II 1. Data items are grouped according to logical relationships 2. Used to identify behavior pattern and trends 3. Used to |
| A) | a-2, b-3, c-4, d-1 |
| B) | a-4, b-2, c-3, d-1 | | C) | a-3, b-1, c-2, d-4 | | D) | a-3, b-1, c-4, d-2 | | | | Q. 2 | Which of the following are features of current details data in a data warehouse? 1. It reflects the most recent happenings and is usually the most interesting 2. It is brief as it is stored at the highest level of granularity 3. It |
| A) | 1 and 3 |
| B) | 2 and 3 | | C) | 1 and 2 | | D) | 1, 2 and 3 | | | | Q. 3 | Match the following Set I a. Classes b. Clusters c. Associations d. Sequential patterns Set II 1. Data items are grouped according to logical relationships 2. Used to identify behavior pattern and trends 3. Used to |
| A) | a-2, b-3, c-4, d-1 |
| B) | a-4, b-2, c-3, d-1 | | C) | a-3, b-1, c-2, d-4 | | D) | a-3, b-1, c-4, d-2 | | | | Q. 4 | Which of the following are requirements of an OLAP system? 1. Multi-dimensional conceptual view 2. Consistent reporting performance and intuitive data manipulation 3. Static dense matrix handling and restricted cross-dimensional op |
| A) | 1, 2 and 4 |
| B) | 2, 3 and 4 | | C) | 1, 2 and 3 | | D) | 1, 2, 3 and 4 | | | | Q. 5 | Which of the following statement are true? 1. Consolidation involves the aggregation of data such as simple roll-ups or complex expressions involving inter-related data 2. Drill-down can be used to display data at a detailed level
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| A) | 1, 2 and 3 |
| B) | 2, 3 and 4 | | C) | 1, 2 and 3 | | D) | 1, 2, 3 and 4 | | | |
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