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Database Management Systems
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Course Name
BSc IT (Bachelor of Science in Information Technology)
Subject Code BT0066 (Database Management Systems )
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PART - A
PART - B
PART - C
Subject : Database Management Systems
BT0066 : PART - B
Q. 1 | ___________ allows individual row operation to be performed on a given result set or on the generated by a selected statement. |
| A) | Procedure |
| B) | Trigger | | C) | Curser | | D) | None of above | | | | Q. 2 | What are the salient features of Data model. 1. It processes a set of concepts for description of the nature of data interrelationships between them along with the syntax 2. It should have as minimum concepts which are close to real world. 3. It should provide primitive by which meaning of data can be captured. 4. It mainly describes the data, which gets stored & processed in a given situation. |
| A) | 1, 3, 4 |
| B) | 1, 2, 3 | | C) | 2, 3, 4 | | D) | 1,2,3,4 | | | | Q. 3 | Describe the B-tree data structure a) an order m is associated with a B-tree b) the root node has at least (m/2) key value and 2 pointers c) all root nodes are that same level d) all nodes other than root have at least (m/2) key value and (m/2+1) pointers |
| A) | a), b), c), d) |
| B) | a), b), c) | | C) | a), c), d) | | D) | c) and d) | | | | Q. 4 | Database Management should: 1. be possible to store, access & maintain the large size of data 2. permit data storage in integrated fashion by fragmenting in different application which control redundant data 3. have a central repository with data description at both logical & physical levels |
| A) | 1., 2 |
| B) | 1, 3 | | C) | 2, 3 | | D) | 1, 2, 3 | | | | Q. 5 | An extent is __ contiguous pages, or ___ KB. Therefore, a database has ___ extents per megabyte. |
| A) | 8, 64, 16 |
| B) | 8, 16, 64 | | C) | 16, 8, 64 | | D) | 64, 8, 16 | | | |
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