Chapter 8 Multiple Choice
A ________, ________, and ________ card may be used when the analyst is beginning to model or talk about the system from an O-O perspective. A) class; responsibilities; collaborators B) class; responsibilities; collections C) class; revisions; collaborators D) collection; responsibilities; collaborators
a
A mechanism for communicating between a server and a mainframe computer is called a: A) message queue. B) swimlane. C) synchronization bar. D) EBCDIC conversion unit.
a
A statechart diagram is created for: A) a single class. B) a single use case. C) an activity on an activity diagram. D) a group of classes connected with relationships.
a
A template that the analyst may use when beginning to model or talk about the system from an O-O perspective is called a: A) CRC card. B) UML descriptor. C) whole-part structure. D) design layer. E) User Message Language
a
Object-oriented techniques work well in situations where ________ information systems are undergoing continuous maintenance, adaptation, and redesign. A) complicated B) simple C) highly technical D) global
a
What is used to show time ordering on a communication diagram? A) a sequence number B) a synchronous arrow C) an asynchronous arrow D) a focus of control
a
When attributes are preceded by a minus sign, it means that: A) the attributes are private. B) the attributes are public. C) the attributes are static. D) the attributes are undefined.
a
When one class is created from another class it is called: A) inheritance. B) dower. C) parenting. D) settlement.
a
Which of the following are not shown on an activity diagram? A) classes B) events C) decisions that are made D) sequence of activities
a
Which type of class represents real-world items? A) entity B) interface C) abstract D) control
a
________ describe the interactions of two or more things that perform a behavior that is more than any one of the things can do alone. A) Communication diagrams B) Concept diagrams C) Structural diagrams D) Behavioral diagrams
a
________ diagrams are used to model the static structural design view of a system. A) Class B) Concept diagrams C) Structural diagrams D) Behavioral diagrams.
a
________ reduces programming labor by reusing common objects easily. A) Inheritance B) Dower C) Parenting D) Settlement
a
________ show the same information as a sequence diagram. A) Communication diagrams B) Concept diagrams C) Structural diagrams D) Behavioral diagrams.
a
Method overloading means that: A) the same method may be defined differently in inherited classes. B) the same method may be defined more than once in a given class. C) the method may have parameters passed to it from more than one relating class. D) the method may be used on different platforms, such as a server or client computer.
b
On an activity diagram, what is used to show parallel activities? A) an arrow B) a synchronization bar C) a swimlane D) a diamond
b
On an activity diagram, what is used to show partitioning? A) a synchronization bar B) a swimlane C) a diamond D) a filled-in circle
b
When classes are involved in inheritance, another name for a child class is: A) a base class. B) a derived class. C) a superclass. D) an instantiated class.
b
When using inheritance, the child class is also known as a ________ class. A) parent B) derived C) primary D) secondary
b
Which of the following is not one of the six most commonly used UML diagrams? A) activity diagram B) CRC card relationship diagram C) use case diagram D) statechart diagram
b
Which type of class provides a means for users to work with the system? A) entity B) boundary or interface C) abstract D) control
b
A private attribute on a class diagram: A) does not change its value for different object instances. B) is hidden from all classes except immediate subclasses. C) is only available in the object. D) is available to the class and all classes that have relationships with the attribute's class.
c
Objects are represented by and grouped into ________ that are optimal for reuse and maintainability. A) objects B) views C) classes D) displays
c
On a sequence diagram, a lateral bar or vertical rectangle is used to represent: A) messages sent between classes. B) the time sequence of activities. C) the focus of control, when an object is busy doing things. D) the lifeline for the class or object.
c
Which of the following is not a format for sending messages between classes on a sequence diagram? A) messageName( ) B) messageName(parameter1, parameter2) C) messageName(parameter1:returnValue, parameter2:returnValue) D) messageName(parameterType:parameterName(defaultValue))
c
Which of the following is not a way to store and retransmit data from a Web page? A) Store the information in a cookie. B) Include the information in the URL. C) Store the data in a message queue. D) Include the data in a hidden field.
c
Which of the following is not one of the main components of UML? A) things B) relationships C) entities D) diagrams
c
Which of the following is the main goal of the object-oriented approach? A) maintaining systems B) minimizing the impact of change C) reusability D) functional control
c
Which type of class cannot be directly instantiated? A) entity B) interface C) abstract D) control
c
Behavioral diagrams include all of the following except: A) activity diagrams. B) communication diagrams. C) class diagrams. D) use case diagrams. E) sequence diagrams.
d
Solid arrowheads used for messages on a sequence diagram represent: A) inheritance relationships. B) return parameters. C) asynchronous messages. D) synchronous calls.
d
The term ________ is used when an object is created from a class. A) class B) updated C) made D) instantiate
d
Which of the following is a structural diagram? A) use case diagram B) statechart diagram C) sequence diagram D) class diagram
d
Which of the following is not described by a use case? A) the actor that initiates an event B) the use case that performs the actions C) the event that triggers the use case D) the objects required by the use case
d
Which type of class acts as a coordinator when implementing classes? A) entity B) interface C) abstract D) control
d