Details for ' Pretest ' Item: Pretest Score: 60% ( Calculated ) Class ...

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Details for 'Pretest'

Item:

Pretest

Score:

60%


(Calculated)

Class Statistics

Submission History


Submitted:

Wednesday, September 21, 2011 5:37 PM

Answers:


1.


UML
provides various graphical tools, such as use case diagrams and
sequence diagrams.






True



False






Score: 1 of 1


2.


System documentation always is up to date.






True



False





See page 112






Score: 1 of 1


3.


What is
it called when a business gains a significant impact on market share
by being the fist to market giving it a competitive advantage?






First
-
mover advantage



Primary market



Primary advantage



Competitive market






Score: 0 of 1


4.


What is hardware?






The set of standards followed by the computer industry



The set of instructions that your computer executes



The physical devices that make up a computer



The physical devices and the set of instructions that your
computer
executes






Score: 1 of 1


5.


If you were to create, read, or respond to a blog on Facebook, you would be
working with which of the following applications?






E
-
Communication



Knowledge management



E
-
Community



Social
networking site






Score: 0 of 1


6.


In an entity
-
relationship diagram, entities are represented as ____.






circles



triangles



hexagons



rectangles






Score: 1 of 1


7.


As shown in the accompanying figure, objects within a
class can be grouped
into ____, which are more specific categories within a class.






subclasses



units



clusters



schedules






Score: 1 of 1


8.


What is business intelligence or BI?






Collective information about a business'
customers, competitors,
partners, environment, and operations



Interrelated and stored data about a person, object, or event



Data that has a particular meaning with a specific context



An enterprise
-
wide set of common and interrelated data






Score: 0 of 1


9.


What is a legacy information system (LIS)?






A Web
-
based information system that connects the information
collected from distinct systems



A retired information system





See page 80



A powerful DBMS that supports ERP



A massive, outdated information system






Score: 0 of 1


10.


An object has certain ____.






indices



attributes



keys



packets






Score: 1 of 1


11.


The personal interview usually is the least expensive fact
-
finding
technique.






True



False






Score: 0 of 1


12.


In a client/server design, a database server ____.






sends and receives Internet
-
based communications



exchanges object methods with clients



processes individual SQL commands



handles a set of SQL commands






Score: 1 of 1


13.


To design data entry screens that are easy to learn and use, employ all of the
following guidelines except ____.






display a default value when a field value will be constant for
successive
records



require users to type leading zeroes for numeric fields



provide a descriptive caption for every field



restrict user access to screen locations where data is entered






Score: 1 of 1


14.


In e
-
commerce, data mining works best
when a goal is to reduce clicks to
close, which means average page views to accomplish a purchase or obtain
desired information.






True



False





See page 379






Score: 0 of 1


15.


A secondary key is a field or combination of fields
that can be used to
access or retrieve records.






True



False






Score: 1 of 1


16.


In DFDs, a process resembles a(n)
symbol
, where the inputs, outputs,
and general functions of the process are known, but the underlying details
are not shown.









Score: 0 of 1


17.


When preparing a representative sample from a list of 200 customers who
complained about errors in their statements, a ____ might select every tenth
customer for review.






stratified sample



random sample



systematic sample



comprehensive sample






Score: 1 of 1


18.


Which of the following is an IT system that supports the capturing,
organization, and dissemination of knowledge?






Automatic workflow system



Business process management
system



Workflow system



Knowledge management system






Score: 0 of 1


19.


A gray hole process is a process that has ____.






no output



at least one input and one output, but the input obviously is too
insufficient to generate the
output shown





See page 153



at least one output and one input, but the output obviously is too
insufficient to generate the input shown



no input






Score: 1 of 1


20.


What is hardware?






The physical devices and the set of
instructions that your computer
executes



The set of standards followed by the computer industry



The physical devices that make up a computer



The set of instructions that your computer executes






Score: 1 of 1


21.


In the OSI (open
system interconnection) model, the application layer ____.






contains physical components that carry data



defines specific methods of transmitting data over the physical
layer



defines control structures that manage the communications link
between computers



provides network services requested by a local workstation






Score: 0 of 1


22.


The logical design of an information system is a plan for the actual
implementation of the system.






True



False






Score: 0 of 1


23.


In a sequence diagram, a lifeline is identified by a(n) ____ line.






red



curved



dashed



solid






Score: 1 of 1


24.


Good interface design is based partly on ____, which focuses on how an
interface can be made attractive
and easy to use.






output security



ergonomics



interface technology



aesthetics






Score: 1 of 1


25.


What is open
-
source information?






Information that requires further investigation into its credibility



Evolving
information or information that can be edited by the
community that uses it



Information that is linked with the originator of the information and
any related sources of information



Programming code that is available or open to customers






Score: 0 of 1


26.


In a DFD, processes contain the business logic, also called business rules,
that transform the data and produce the required results.






False



True






Score: 1 of 1


27.


Microsoft’s ____ is one of the major Web
-
based

development
environments.






.NET



WebSphere



.WEB



NetSphere






Score: 1 of 1


28.


When designing a report, a sample report, which is a ____, or prototype,
should be prepared for users to review.






dialog box



mock
-
up



form layout



storyboard






Score: 0 of 1


29.


A common backup strategy is to use a RAID (redundant array of
independent disks) system, which mirrors the data while processing
continues.






True



False






Score: 1 of 1


30.


Using

batch input, data entry is performed continuously.






True



False





See Page 312






Score: 1 of 1


31.


The net present value (NPV) of a project is the total value of the benefits
minus the total value of the costs, with both costs and
benefits adjusted to
reflect the point at which they occur.






True



False





See page 247






Score: 0 of 1


32.


What is a value chain?






The series of business processes, each of which adds value to
products or services for your
customers



The series of business partners and team members that are directly
responsible for producing and processing a set of products or
services for your customers



The information or feedback from customers that is then used to
improve the quali
ty of your products or services



A set of products and services that have proved valuable and
profitable for your business






Score: 1 of 1


33.


The disadvantage of the four
-
model approach is ____.






all of the above





See page178



it gives an unclear picture of the current system functions before
any modifications or improvements are made



the requirements of a new information system always are different
from the current information system



the added time and cost needed to
develop a logical and physical
model of the current system






Score: 0 of 1


34.


In e
-
commerce, data mining works best when a goal is to reduce clicks to
close, which means average page views to accomplish a purchase or obtain
desired information.






True



False





See page 379






Score: 0 of 1


35.


Typically, companies choose in
-
house software development for all of the
following reasons except to ____.






minimize changes in business procedures and policies



develop
internal resources and capabilities



obtain input from other companies who already have implemented
the software





See page 242



meet constraints of existing systems and existing technology






Score: 1 of 1


36.


A black box does not want
or need outside interference.






True



False






Score: 1 of 1


37.


When developing e
-
business systems, an in
-
house solution usually requires
a ____ for a company that must adapt quickly in a dynamic e
-
commerce
environment.






greater
initial investment but provides more flexibility



greater initial investment and provides less flexibility



smaller initial investment but provides less flexibility



smaller initial investment and provides more flexibility






Score: 1 of 1


38.


A disadvantage of a bus network is that ____.






performance can decline as more users and devices are added



failure in one workstation necessarily affects other workstations on
the network



all of the above



devices cannot be attached

or detached without disturbing the rest
of the network






Score: 1 of 1