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Multiple Choice Quiz
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1
Which of the following refers to a collection of information that you organize and access according to the logical structure of that information?
A)A database
B)A Web site
C)A wiki
D)Cache
2
Which of the following refers to a concept, in a relational database, about which you wish to store information and that you can identify with a unique key?
A)A relation
B)A field
C)An entity class
D)An attribute
3
Which of the following is true about a primary key?
A)It is a field that uniquely describes each record.
B)It is an occurrence of an entity class that can be uniquely described.
C)It is a series of logically related two-dimensional tables.
D)It is a collection of information that can be accessed according to the logical structure of that information.
4
Which of the following is an occurrence of an entity class that can be uniquely described with a primary key?
A)An attribute
B)An instance
C)A composite relation
D)An entity relationship
5
What type of graphical model is used to represent entity classes and their relationships?
A)Flowchart
B)Pivot table
C)Integrity constraint diagram
D)E-R diagram
6
In an E-R diagram, which of the following basic symbols is used to denote an entity class?
A)A dotted line
B)A crow's foot
C)A rectangle
D)A circle
7
Which of the following refers to a process of assuring that a relational database structure can be implemented as a series of two-dimensional relations?
A)Normalization
B)Designing
C)Composite relation
D)Database management
8
Which of the following is a relation you create to eliminate a many-to-many relationship?
A)A unique relation
B)A foreign relation
C)A primary relation
D)An intersection relation
9
Which of the following helps you to specify the logical organization for a database and access and use the information within the database?
A)A data mart
B)A database management system
C)Database normalization
D)A relational database
10
Which of the following contains the logical structure for the information in a database?
A)An entity class
B)A data warehouse
C)An instance
D)A data dictionary





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