30 câu hỏi
Moore's Law states that the general trend in computing is toward smaller, faster, and cheaper devices; specifically, that computer processing performance would double every 18 months.
A True
False
Legacy systems are still used because they
can only be run on the older mainframe computers.
are too expensive to redesign.
integrate well using new Web services technologies.
contain valuable data that would be lost during redesign.
Which type of software is created and updated by a worldwide community of programmers and available for free?
software packages
mashups
outsourced
open source
The ability to be in many different states at once, dramatically increasing processing power, is a hallmark of
co-location.
grid computing.
utility computing.
quantum computing.
In data mining, which of the following involves events linked over time?
Associations
Sequences
Classifications
Clustering
A characteristic or quality that describes a particular database entity is called a(n):
field.
tuple.
key field.
attribute.
______ creates confusion that hampers the creation of information systems that integrate data from different sources.
Batch processing
Data redundancy
Data independence
Online processing
Data mining allows users to:
quickly compare transaction data gathered over many years.
find hidden relationships in data.
obtain online answers to ad-hoc questions in a rapid amount of time.
summarize massive amounts of data into much smaller, traditional reports.
The phenomenon of employees using their own devices in the workplace is known as
wearable computing.
mobile consolidation.
BYOD.
self computing.
UPS's use of Web-based tools that allow customers to embed UPS functions such as tracking and cost calculations into their own Web sites was an information systems solution used to achieve customer intimacy.
True
False
What are the characteristics of fully digital firm:
Significant business relationships are digitally enabled and mediated.
Core business processes are accomplished through digital networks.
Key corporate assets are managed digitally
All of the above
Which of the following choices may lead to competitive advantage? 1. new products, services, and business models; 2. charging less for superior products; 3. responding to customers in real time?
1 only
1 and 2
2 and 3
1 and 3
What is Input's role in the IPO model?
Captures raw data from organization or external environment
Converts raw data into meaningful form
Transfers processed information to people or activities that use it
Output returned to appropriate members of organization to help evaluate or correct input stage
An example of raw data from a national chain of automobile stores would be
an average of 13 Toyotas are sold daily in Kentucky.
30-percent increase in Toyota RAV4 sales during September in Kentucky.
1 Toyota RAV4 sold March 3, 2013, in Louisville, Kentucky.
10-percent improvement in sales projections for Toyota sales next year.
One example of a business process is shipping a product to a customer.
True
False
The term "management information systems" designates a specific category of information systems serving
integrated data processing throughout the firm.
transaction process reporting.
employees with online access to historical records.
middle management functions.
Which type of system would you use to determine the five suppliers with the worst record in delivering goods on time?
ESS
TPS
MIS
DSS
All of the following are reasons for the increased business focus on collaboration and teamwork, except for
the need for creating innovative products and services.
growth of "interaction" jobs.
greater global presence.
the need for more efficient work hierarchies.
……… enable management to make better decisions regarding organizing and scheduling sourcing, production, and distribution.
SCMs
TPSS
KMSS
ERPs
The people for whom information systems applications are developed are referred to as
end users
developers
system analyst
first users
……………. technologies radically change the business landscape and environment.
Explosive
Inventive
Disruptive
Subversive
Interpretations of Moore's law assert that
computing power will eventually level off.
transistors decrease in size 50% every two years.
data storage costs decrease by 50% every 18 months.
computing power doubles every 18 months.
SaaS refers to technology.
supplying online access over networks to storage devices and storage area network
managing combinations of applications, networks, systems, storage, and security as well as providing Web site and systems performance monitoring to subscribers over the Internet.
self-contained services that communicate with each other to create a working software application.
hosting and managing access to software applications delivered over the Internet to clients on a subscription basis.
______ allows a single computing resource, such as a server, to appear to the user as multiple logical resources.
Cloud computing
Virtualization
Quantum computing
Nanotechnology
Which option is not an advantage of external memory over primary memory
Lower cost
Higher speed
Larger capacity
All of the above
The process of streamlining data to minimize redundancy and awkward many- to-many relationships is called:
normalization.
data scrubbing.
data cleansing.
optimization.
A(n) ________ represent data as two- dimensional tables.
non-relational DBMS
relational DBMS
hierarchical DBMS
object-oriented DBMS
A managerial clement in the UPS tracking system described in the chapter is
taking inventory.
providing package status reports to customers.
the decision to use automation
in – house package tracking software
Which of the following industries has the lowest barrier to entry?
Computer chip
Small retailer
Airline
Solar energy
Automotive
Amazon's use of the Internet as a platform to sell books more efficiently than traditional bookstores illustrates which of the following strategies?
Marketing effectiveness
Focusing on market niche
Strengthening supplier intimacy
Developing synergies
Low-cost leadership