
Database Concepts Quiz
Authored by Ms.P. BRINDHA
Engineering
University
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is not a view of data?
Internal
Conceptual
External
Logical-Physical
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which model organizes data in a tree-like structure?
Relational
Hierarchical
Network
Object-oriented
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is a feature of the relational model?
Data is stored in files
Data is stored in tables
Data is stored in hierarchies
Data is stored as graphs
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which key uniquely identifies a tuple in a relation?
Foreign key
Composite key
Primary key
Candidate key
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Relational Algebra is a ___.
Procedural query language
Non-procedural language
Procedural query language
Scripting language
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which SQL command is used to retrieve data?
SELECT
INSERT
UPDATE
DELETE
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In an E-R diagram, an entity is represented by:
Circle
Rectangle
Diamond
Ellipse
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