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Free computer quiz Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. In a relational model, relations are termed as
(a)
Rows
(b)
Tables
(c)
Attributes
(d)
Tuples
2. DBMS helps to achieve
(a)
Data independence
(b)
More redundancy
(c)
Centralised manner to control of data
(d)
Both a and c
3. A database management system
(a)
Allows simultaneous access to multiple files
(b)
Can do more than a record management system
(c)
Is a collection of programs for managing data into a single file
(d)
Both a and b
4. Which of the following types of tables constraints will prevent the entry of duplicate rows?
(a)
Primary keys
(b)
Foreign keys
(c)
Unique keys
(d)
Candidate keys
5. In a relational modes, a cardinality is termed as
(a)
Number of constraints
(b)
Number of tables
(c)
Number of attributes
(d)
Number of tubles
6. A _____ is a property of the entire relation rather than of the individual tuples in which each tuple is unique.
(a)
Key
(b)
Rows
(c)
Attribute
(d)
Fields
7. Which of the following is/are the primary features of a DBMS?
(a)
To provide an environment that is congenial to user
(b)
To store the information
(c)
To retrieve information
(d)
All of the above
8. In an E-R diagrams, ellipses represents
(a)
Attributes
(b)
Link between attributes and entity sets
(c)
Relation among entity set
(d)
Entity set
9. Which of the following is a procedural language?
(a)
Relational algebra
(b)
Query language
(c)
Tuple relational calculus
(d)
Domain relational calculus
10. Which of the following is not a type of database?
(a)
Relational
(b)
Hierarchical
(c)
Network
(d)
Transition
