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3.8. 3.9. 3.10. Which one of the following is an example of a disjoint and partial specialization? a. HUMAN VEGETARIAN + NON-VEGETARIAN b. HUMAN BLONDE
3.8. 3.9. 3.10. Which one of the following is an example of a disjoint and partial specialization? a. HUMAN VEGETARIAN + NON-VEGETARIAN b. HUMAN BLONDE + BRUNETTE c. HUMAN-LOVES FISH + LOVES MEAT d. HUMAN UNIVERSITY DEGREE + COLLEGE DEGREE Which of the following statements is correct? a. An aggregation cannot have attribute types. b. An aggregation cannot participate in a relationship type. c. An aggregation should both have attribute types and participate in one or more relationship types. d. An aggregation can have attribute types and participate in relationship types. Which statement is correct? a. A class is an instance of an object. b. A class only has variables. c. Inheritance is not supported in object orientation. d. Information hiding (also referred to as encapsulation) states that the variables of an object can only be accessed through either getter or setter methods. Which variable types are not directly supported in UML? a. Composite variables. b. Multi-valued variables. c. Variables with unique values (similar to key attribute types in the ER model). d. Derived variables. Which of the following statements is not correct? a. In UML, access modifiers can be used to specify who can have access to a variable or method. b. A private access modifier (denoted by the symbol "-") is used in the case that the variable or method can only be accessed by the class itself. c. A public access modifier (denoted by the symbol "+") is used in the case that the variable or method can be accessed by any other class. d. A protected access modifier (denoted by the symbol "#") is used in the case that the variable or method can be accessed by both the class and its superclasses. Which statement is correct? 3.11. 3.12. 3.13. 3.14. a. An association is an instance of a link. b. Only binary associations are supported in the UML class diagram. c. An association is always bidirectional. d. Qualified associations can be used to represent weak entity types. A composite aggregation... a. has a maximum multiplicity of 1 and a minimum multiplicity of 0 or 1 at the composite side. b. has a maximum multiplicity of n and a minimum multiplicity of 0 at the composite side. c. has a maximum multiplicity of n and a minimum multiplicity of 0 or 1 at the composite side. d. has a maximum multiplicity of 1 and a minimum multiplicity of 1 at the composite side
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