DBMS MCQ : Instance and Schema (Multiple Choice Questions)
Question 1 |
Map of concepts and their relationships is represented by __________ Schema.
None of these | |
Logical Schema | |
Physical Schema | |
Conceptual Schema |
Question 1 Explanation:
Conceptual Schema and Sub-Schema are both are equal.
Question 2 |
A map of entities and their attributes and relations is represented by ____________.
None of these | |
Physical Schema | |
Conceptual Schema | |
Logical Schema |
Question 3 |
The environment of database is said to be _____________.
Database Schema | |
Database Instance |
Question 4 |
A database instance is a set of memory structure and background processes that access a set of database files.
False | |
True |
Question 5 |
Arrange the database Schema's in Appropriate order -
- Logical Schema
- Conceptual Level
- Physical Level
2 3 1 | |
1 2 3 | |
3 2 1 | |
3 1 2 |
There are 5 questions to complete.