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IBM Object Oriented Analysis and Design-Part1(Analysis) Sample Questions:

1. Why is encapsulation important? (Choose two.)

A) It places operations and attributes in the same object.
B) It describes the relationship between two subclasses.
C) It prevents other objects from directly changing the attributes of an object.
D) It allows other objects to change private operations and attributes of an object.

2. An architect looks at two classes. The first class has the following operations:
getName(),getSize(),getTotal(), and findAverage(). The second class has the following
operations:
getName(),getSize(), findAverage(), findMinimum(), and findMaximum(). The two classes share
the same superclass. Which operations are most likely contained in the superclass?

A) getName(), getSize(), getTotal(), and findAverage()
B) findMaximum(), findMinimum(), getSize(), and getTotal()
C) getName(), getSize(), and findAverage()
D) getName(), findAverage(), and findMaximum()

3. What is a named object in UML?

A) Matt:Employee
B) Matt::Employee
C) :Employee
D) ::employee

4. In Use Case Analysis, what is the function of boundary classes?

A) to define entry points or roots into the core Object Data Model
B) to define the service interfaces exposed by the Business layer
C) to represent the screens in the user interface
D) to insulate external forces from internal mechanisms and vice versa

5. In Use Case Analysis, what is the purpose of the Unify Analysis Classes step?

A) to ensure that each analysis class represents a single well-defined concept, with no overlapping responsibilities
B) to gather the analysis classes from each use-case realization and bring them into the Design Model
C) to make sure the responsibilities of each class are consistent and that the class has a welldefined single purpose
D) to create initial class families by using inheritance to group related classes into tree structures

Solutions: