Modeling Data in the Organization - General Questions Online Exam Quiz
Modeling Data in the Organization - General Questions GK Quiz. Question and Answers related to Modeling Data in the Organization - General Questions. MCQ (Multiple Choice Questions with answers about Modeling Data in the Organization - General Questions
A binary relationship is which of the following?
Options
A : A relationship between two attributes
B : A relationship between two entities
C : An attribute with two different relationships
D : An entity with two different relationships
If there are two entities with a relationship between them, and one of the entities is completely dependent on the other, then which of the following must exist?
Options
A : Derived attribute
B : Optional one cardinality
C : Multi-valued attribute
D : Weak entity
A relationship is which of the following?
Options
A : A person, place, or thing
B : Property or characteristic of an entity
C : Link between entities
D : Weak entity
Which of the following conditions should exist if you want to convert a relationship to an associative entity?
Options
A : Some of the relationships for the participating entities are "many".
B : The resulting associative entity has an independent meaning.
C : The resulting associative entity has no attributes.
D : All of the above
A good identifier is which of the following?
Options
A : One that can change over time
B : Can be null
C : One that is unique
D : Be intelligent
A rectangle represents which of the following in an ERD?
Options
A : Attribute
B : Entity
C : Optional One
D : Relationship
An entity name should be which of the following?
Options
A : A singular noun
B : Specific to the organization
C : Concise
D : All of the above.
An oval represents which of the following in an ERD?
Options
A : Attribute
B : Entity
C : Optional One
D : Relationship
When the minimum and maximum number of instances of an entity is one, you know which of the following?
Options
A : Mandatory one
B : Optional one
C : Mandatory many
D : Cannot tell
An attribute name should be which of the following?
Options
A : Singular verb or verb phrase
B : Follow a standard format
C : Use a alias
D : All of the above.
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