This Quiz contains totally 10 Questions each carry 1 point for you.
- What is a Composite Key in DBMS?
A key that is composed of two or more columns
A key that is composed of three or more columns
A key that is composed of four or more columns
A key that is composed of five or more columns
Correct!
Wrong!
2. What is a Relational Calculus in DBMS?
It is a procedural query language
It is a non-procedural query language
It is a programming language
It is a mathematical operation
Correct!
Wrong!
3. Which type of dependency in DBMS involves a condition where a set of attributes depends on multiple sets of attributes, each of which is not a proper subset of other sets?
Trivial functional dependency
Non-trivial functional dependency
Multivalued dependency
Transitive dependency
Correct!
Wrong!
4. What is the main purpose of the Third Normal Form (3NF)?
Remove all types of transitive dependencies
Remove all types of partial dependencies
Remove all types of functional dependencies
None of the above
Correct!
Wrong!
5. The process of dividing a database into two or more pieces is called:
Normalization
Denormalization
Decomposition
Aggregation
Correct!
Wrong!
6. The Primary Key of a relational table uniquely identifies each _____ in a table.
Attribute
Tuple
Column
Schema
Correct!
Wrong!
7. The Relational Model was first introduced by:
Edgar F.Codd
Bill Gates
Larry Page
Steve Jobs
Correct!
Wrong!
8. What does a Null value represent in a relational database?
Zero
Empty String
Absence or unavailability of a value
Negative value
Correct!
Wrong!
9. Which of the following normal forms is considered adequate for normal relational database design?
1NF
2NF
3NF
4NF
Correct!
Wrong!
10. In the context of DBMS, what does ACID stand for?
Atomicity, Consistency, Isolation, Durability
Accuracy, Consistency, Integrity, Durability
Atomicity, Coherency, Isolation, Durability
Accuracy, Consistency, Integrity, Dependability
Correct!
Wrong!
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DBMS Relational Algebra and Calculus Intermediate – Quiz
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