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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 - C
| Q. 1 | Following are the types of operators
i. Arithmetic
ii Comparison
iii String Concatenation
iv. Logical |
| | A) | only i & iii |
| B) | only ii & iv | | C) | All the above | | D) | None of the above | | | | | Q. 2 | Stored Procedures can
i. Share Application Logic
ii. Encapsulate Business Functionality
iii. Provide security Mechanisms
iv. Automatically Execute
v. Increase Performance
vi. Reduce Network Traffic |
| | A) | i, ii, iii, vi only |
| B) | i, iv, v only | | C) | None of the above | | D) | All of the above | | | | | Q. 3 | What are the advantages of 3-schema
architecture.
1. provides data independence only at physical
levels
2. changes can be carried out to the internal
schema for the improvement in performance,
without any impact on the user program
3. facilities easy growth & allows large
application to develop in phases
4. provides independence to the existing
application & allows to add new kinds of data &
user application.
5. security to the stored data is achieved |
| | A) | 2, 3, 4, 5 |
| B) | 1, 2, 3, 4, 5 | | C) | 1, 3, 4, 5 | | D) | 1, 2. 3, 4 | | | | | Q. 4 | Match the following Type of integrity with
their constraint type
SET A
i. Domain
ii. Entity
iii. Referential
SET B
a. DEFAULT, CHECK
b. PRIMARY, UNIQUE
c. FOREIGN, KEY |
| | A) | i – a, ii – b, iii – c |
| B) | i – b, ii – c, iii – a | | C) | i – c, ii – a, iii – b | | D) | i – a, ii – c, iii – b | | | | | Q. 5 | To locate required block on a track is called
latency time. It is also known as ______ |
| | A) | Seek-time |
| B) | Rotational delay | | C) | Rotational Time | | D) | Transfer Rate | | | |
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