21.
Richard, who works for a retail company, needs to categorize his company’s
customer database. He is currently saving large amounts of information into
different classes such as
Membership Duration
,
Purchase Details
,
Product
Preferences
, and so forth. The process would help executives access and
understand customer data with ease. This is an example of ____.
22.
An object is an instance of a(n) ____.
23.
Which of the following represents how objects communicate with one
another?
24.
Fredrick who works for a telecom company, is building a customer feedback
system. In the system, there is one class which represents customers,
another which represents customer service representatives, and a third
class that represents technical support executives. Objects from each of
these classes interact with each other in order to resolve problems and
queries. Which of the following enables this interaction?
25.
Who is responsible for building the classes which contain information and
procedures and inputting the actual information?
26.
_____ are the individuals responsible for inputting the actual information, or
creating the objects, within a system.
27.
Which of the following refers to the ability to define superclass and
subclass relationships among classes?
28.
Defining _____ involves defining generic and specific information and
procedures.
29.
Steven is using a fundamental principle of object-oriented technologies
where he is establishing subclasses for cell phones. He is currently
categorizing the Z- and N-series range of cell phones as subclasses of the
cell phone superclass. He determined this by noting that both the series
encompass all the features of the superclass such as
Receive Calls
,
Make
Calls
, and
Send Text Messages
. Which of the following principles is Steven
using?
30.
Kenneth has a range of electronic equipment which includes cameras,
iPods, and cell phones. The cell-phones are of two types – the S-series and
T-series. The S-series has touch-screens whereas the T-series has an in-
built GPS navigation system. The range of cameras includes SLRs and
pocket cameras. Which of the following is the superclass of the T-series?
31.
Gary works at an electronics store and is in charge of several electronic
products. He has on display cameras, portable media players, and cell
phones. His customers mostly browse through the camera’s Y-series and
SLR sections. Gary also has the X-series range of cell phones which come
with in-built cameras. Which of the following is the subclass of cell
phones?
32.
_____ information and procedures apply to all subclasses, which will inherit
the information and procedures from the superclass in which they are
defined.
33.
A primary benefit of inheritance is ____.
34.
Which of the following is true of inheritance, a fundamental principle of
object-oriented technology?
35.
Which of the following is a fundamental principle of object-oriented
technology which refers to information hiding?
36.
In the object-oriented technology approach, what are objects referred to as
when the information inside them is hidden and all that can be viewed are
the objects?
37.
A(n) _____ refers to any device that calls procedures, such as a keyboard,
mouse, or touch screen.
38.
_____ is a fundamental principle of object-oriented technologies and means
“to have many forms.”
39.
Which of the following is true regarding polymorphism?
40.
_____ refers to how well your system can adapt to the increased demands
of additional users, more information to handle, and the need for faster
processing speeds.