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Thursday, November 21, 2013

Quiz

Modern Database Management, Chapter 2 Modeling Data in the transcription 1) The greenness display cases of entities are: A) strong entities. B) wearied entities. C) associative entities. D) on the whole of the above. 2) The perspicuous representation of an governments data is called a(n): A) database model. B) entity-relationship model. C) relationship systems design. D) database entity diagram. 3) A vocation practice: A) defines or constrains some aspect of the business. B) asserts business structure. C) controls or influences the sort of the business. D) all of the above. 4) Customers, cars, and parts are examples of: A) entities. B) deputes. C) cardinals. D) relationships. 5) An entity typecast whose universe depends on another entity type is called a ________ entity. A) strong B) weak C) codependent D) variant 6) A(n) ________ is the relationship between a weak entity type and its owner. A) member image B) identify ing relationship C) jump path D) chain link 7) A property or characteristic of an entity type that is of interest to the organization is called a(n): A) attribute. B) coexisting entity. C) relationship. D) cross-function. 8) An attribute that must cod a mensurate for every entity (or relationship) congressman is a(n): A) composite attribute. B) necessitate attribute.
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C) optional attribute. D) multi measure outd attribute. 9) An attribute of an entity that must have a value for each entity instance is a(n): A) optional attribute. B) composite attribute. C) required attribute. D) blear-eyed attribute. 10) An attribute that rouse be broken down into small p arts is called a(n) ________ attribute. A) ! associative B) simple C) composite D) complex 11) The future(a) consider shows an example of: [pic] A) a composite attribute. B) a relative attribute. C) a derived attribute. D) a multivalued attribute. 12) In the figure below, which attribute is multivalued? [pic] A) Years_Employed B) Employee_ID C) Skill...If you expect to take down a full essay, order it on our website: OrderEssay.net

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