Related Questions

When the parent entity is required and the parent has a surrogate key, update actions can be ignored.
A True
B False
Cascading updates refers to child rows being automatically deleted when a parent row is deleted.
A True
B False
When the parent entity is required, a new parent row can always be inserted.
A True
B False
What command is used to stop RIP routing updates from exiting out an interface but still allow the interface to receive RIP route updates?
A Router (config-if) # no routing
B Router (config-if) # passive-interface
C Router (config-router) # passive-interface s0
D Router (config-router) # no routing updates
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
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
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.
A True
B False
A strong entity is an entity whose existence depends on some other entity type.
A True
B False
Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity?
A Supertype entity
B Subtype entity
C Archetype entity
D Instance entity

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