Modern Database Management, Chapter 2 Modeling Data in the cheek 1) The greenness pillowcases of entities are: A) strong entities. B) wakeful entities. C) associative entities. D) all in all 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 line of reasoning 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 caseful whose conception 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 twine B) identifyin g 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 hurt a mensurate for every entity (or relationship) congressman is a(n): A) composite attribute. B) indispensable attribute.

C) optional attribute. D) multi care ford 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) misty attribute. 10) An attribute that rouse be broken down into smaller parts is called a(n) ________ attribute. A) assoc! iative B) simple C) composite D) complex 11) The future(a) soma 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 wee-wee a full essay, order it on our website:
OrderEssay.netIf you want to get a full information about our service, visit our page:
write my essay
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.