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Entity Relationship (ER) Modeling Questions

MCQ
51.
Which relationship is used to represent a specialization entity?
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MCQ
52.
The refinement from an initial entity set into successive levels of entity subgroupings represents a ________ design process in which distinctions are made explicit.
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MCQ
53.
There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
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MCQ
54.
If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has
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MCQ
55.
level entity set.
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MCQ
56.
Consider the employee work-team example, and assume that certain employees participate in more than one work team. A given employee may therefore appear in more than one of the team entity sets that are lower level entity sets of employee. Thus, the generalization is _____________
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MCQ
57.
The completeness constraint may be one of the following: Total generalization or specialization, Partial generalization or specialization. Which is the default?
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MCQ
58.
Functional dependencies are a generalization of
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MCQ
59.
Which of the following is another name for a weak entity?
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