Related Questions

Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier?
A Weak entity
B Strong entity
C ID-dependent entity
D ID- independent entity
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?
A Weak entity
B Strong entity
C ID-dependent entity
D ID-independent entity
A strong entity is an entity whose existence depends on some other entity type.
A True
B False
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
A Supertype entity
B Subtype entity
C Archetype entity
D Instance entity
Many scientists are still hoping (to have found life) on another planet. (The bracketed portion of each question may contain some error. Identify the option that best replaces the bracketed portion. If there is no error then choose option E)
A to had found
B to find
C two find
D to have been found
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
A Supertype entity
B Subtype entity
C Archetype entity
D Instance entity
In which of the following is a single-entity instance of one type related to many entity instances of another type?
A One-to-One Relationship
B One-to-Many Relationship
C Many-to-Many Relationship
D Composite Relationship
In which of the following can many entity instances of one type be related to many entity instances of another type?
A One-to-One Relationship
B One-to-Many Relationship
C Many-to-Many Relationship
D Composite Relationship
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
A One-to-One Relationship
B One-to-Many Relationship
C Many-to-Many Relationship
D Composite Relationship
The man did the work (in the nick of time). A sentence is given in each question and some portion of it is bracketed. You have to find out the meaning of the bracketed portion of the sentence from the options given.
A right on time
B after deadlin
C long before deadline
D very last minute

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