BIS Ch 9, 10, 11
28) The facts about data, such as its source, format, assumptions, constraints, and the like, are called ________. A) metadata B) folksonomies C) microdata D) data packets
A
10) Reporting systems improve decision making by ________. A) providing the right information to the right user at the right time B) discovering patterns and relationships in data to predict future outcomes C) fostering innovation and improving customer service D) encoding, saving, and processing expert knowledge
A
13) ________ compute(s) the correlation of items on past orders to determine items that are frequently purchased together. A) Market-basket analysis B) Knowledge management systems C) Expert systems D) Clickstream data
A
16) If Patient_Temperature > 103, Then Initiate High_Fever-Procedure. This sort of a rule is most likely to be found in a(n) ________ system. A) expert B) knowledge management C) operational D) reporting
A
18) [email protected] is an example of ________. A) dirty data B) coarse data C) inconsistent data D) fine data
A
21) ________ data is highly summarized. A) Coarse B) Missing C) Clickstream D) Dirty
A
25) A ________ is a company that obtains data from public and private sources and stores, combines, and publishes it in sophisticated ways. A) data aggregator B) data harvester C) data center D) date warehouse
A
27) Which of the following is true for data warehouses? A) Data are stored in a data warehouse database using a data warehouse DBMS. B) Data warehouses are prohibited from purchasing data from outside sources. C) User-generated content applications generate potentially large amounts of data. D) Purchased data is more accurate than data collected directly from clients.
A
29) A ________ is a data collection that is created to address the needs of a particular business function, problem, or opportunity. A) data mart B) data harvester C) data mine D) data warehouse
A
33) In unsupervised data mining ________. A) analysts do not create a model or hypothesis before running the analysis B) analysts apply statistical techniques to data to estimate parameters of a model C) analysts use tools such as regression analysis D) analysts fit data to suggested hypotheses
A
34) In ________, statistical techniques identify groups of entities that have similar characteristics. A) cluster analysis B) neural networks C) regression analysis D) curve fitting
A
35) Which of the following is a common unsupervised data-mining technique? A) cluster analysis B) regression analysis C) neural networking D) market-basket analysis
A
5) How many bytes make up 1 gigabyte? A) 109 B) 1012 C) 1015 D) 1018
A
According to Brooks' Law, adding more people to a late project ________. A) makes the project later B) decreases the overall cost C) improves the quality of work D) enhances the team's productivity
A
Because of the significant risks involved, organizations should avoid this conversion style if possible. A) plunge B) parallel C) pilot D) phased
A
Developers in the ________ phase of the SDLC use management's statement of the system needs in order to begin to define a new information system. A) system definition B) requirements analysis C) component design D) implementation
A
During the requirements analysis phase of the SDLC, the development team will create a(n) ________ in case the new system involves a new database or substantial changes to an existing database. A) data model B) prototype C) archetype D) illustration
A
Information systems are never ________. A) off-the-shelf B) tailor-made C) off-the-shelf with adaptation D) made-to-order
A
Products in the beta test phase ________. A) are generally fully functioning B) are incomplete C) are in the first phase of testing D) are completely error-free
A
The easiest and cheapest time to alter the information system is in the ________ phase of the SDLC. A) requirements analysis B) system definition C) component design D) implementation
A
The process of creating and maintaining information systems is called ________. A) systems development B) program development C) systems definition D) computer design
A
________ are IT professionals who understand both business and technology. A) Systems analysts B) Programmers C) Business analysts D) Beta testers
A
programmer
A ________ designs and writes computer codes.
network administrator
A ________ monitors, maintains, fixes, and tunes computer networks.
consultant
A ________ performs a wide range of activities such as programming, testing, database design, communications and networks, project management, and so on, and is required to have an entrepreneurial attitude.
steering
A(n) ________ committee is a group of senior managers from the major business functions that works with the CIO to set the IS priorities and decide among major IS projects and alternatives.
36) With ________ data mining, data miners develop a model prior to the analysis and apply statistical techniques to data to estimate parameters of the model. A) cluster B) supervised C) clickstream D) unsupervised
B
39) Which of the following data-mining techniques is used to predict values and make classifications, such as "good prospect" or "poor prospect" customers? A) cluster analysis B) neural networks C) market basket analysis D) regression analysis
B
It can be an easy way to gain expertise otherwise not known.
An advantage of outsourcing information systems:
development group of IS department
An important function of this group is to monitor user experience and respond to user problems.
technology
An organization that wishes to leverage the power of social media and elastic cloud opportunities to help accomplish its goals and objectives should ideally turn to the ________ group within its IT department for information
unauthorized hardware modifications.
As a user of IS, an employee has a responsibility to avoid ________.
11) Decision tree analysis is a technique used by ________ systems. A) knowledge management B) data-mining C) reporting D) expert
B
20) ________ refer(s) to the degree of summarization or detail. A) Data abstraction B) Data granularity C) Gross data D) Data aggregation
B
24) The more attributes there are, the easier it is to build a model that fits the sample data but that is worthless as a predictor. Which of the following best explains this phenomenon? A) the free rider problem B) the curse of dimensionality C) the tragedy of the commons D) the zero-sum game
B
3) A type written page is about 2 ________. A) megabytes B) kilobytes C) terabytes D) petabytes
B
A test plan ________. A) should not include the incorrect actions that users will take B) should cause every line of program code to be executed C) should cause only critical error messages to be displayed D) should be constructed by PQA personnel alone
B
Adding more people to a late systems development project will make the project later because ________. A) allocating tasks becomes easier B) training new people slows down team members C) analyzing the system requirements becomes complex D) budgeting project costs becomes complicated
B
As development teams become larger, the average contribution per worker ________. A) increases B) decreases C) stabilizes D) increases, but only marginally
B
In a ________ installation, the new system runs alongside the old one until it has been tested and is fully operational. A) pilot B) parallel C) phased D) plunge
B
In terms of software design, for ________, the team must determine candidate products and evaluate them against the requirements while for ________, the team produces design documentation for writing program code. A) off-the-shelf-with-alteration software; custom-developed programs B) off-the-shelf software; custom-developed programs C) off-the-shelf-with-alteration software; off-the-shelf software D) tailor-made software; off-the-shelf software
B
Software vendors usually bundle fixes of low-priority problems into ________. A) patches B) service packs C) debuggers D) system fixes
B
The bigger the system and the longer the project, ________. A) the lesser are the diseconomies of scale B) the more the requirements change C) the greater is the average contribution per worker D) the easier the task of scheduling
B
The initial step in the first phase of the SDLC is to ________. A) assess the feasibility of the project B) define the goals and scope of the new system C) determine the schedule and budget for the project D) form the project team
B
Which of the following statements is true with regard to system maintenance? A) Software developers usually group enhancement requests and failures together. B) IS personnel prioritize system problems on a first-come-first-served basis. C) All commercial software products are shipped with known failures. D) All organizations track system failures and enhancements using word-processing documents.
C
Which step in the SDLC process aims to eliminate obviously nonsensible projects? A) Define system goals and scope. B) Form the project team. C) Assess project feasibility. D) Plan the project.
C
1) ________ is information containing patterns, relationships, and trends. A) Technical writing B) Raw data C) Business intelligence D) Internal communication
C
15) Which of the following systems use If/Then rules? A) data-mining systems B) knowledge-management systems C) expert systems D) reporting systems
C
19) Which of the following is a problem commonly associated with operational data that have been gathered over time? A) too fine B) nonintegrated C) inconsistent D) missing values
C
22) Clickstream data is ________. A) inconsistent B) too coarse C) too fine D) dirty data
C
23) Generally, it is better to have data that is ________ than data that is ________. A) random; specific B) inconsistent; unintegrated C) too fine; too coarse D) problematic; dirty
C
30) ________ are comparable to distributors in a supply chain because they take data from the data manufacturers, clean and process the data, and locate the data on the disks of its computers. A) Database servers B) Data marts C) Data warehouses D) Data harvesters
C
31) ________ is the application of statistical techniques to find patterns and relationships among data and to classify and predict. A) Data encryption B) Data warehousing C) Data mining D) Data compression
C
37) Regression analysis is used in ________. A) expert systems B) knowledge management systems C) data-mining systems D) reporting systems
C
6) ________ bytes equal one terabyte. A) 1,000 B) 1,000,000 C) 1,000,000,000,000 D) 1,000,000,000
C
7) A petabyte consists of ________ bytes. A) 109 B) 1012 C) 1015 D) 1018
C
8) One ________ is equal to 1018 bytes A) megabyte B) gigabyte C) exabyte D) terabyte
C
Compared to program development, systems development is ________. A) narrower in focus B) less comprehensive C) broader in scope D) usually technical in nature
C
Normal processing procedures for system users are ________. A) procedures to continue operations when the system fails B) procedures for backing up data and other resources C) procedures for using the system to accomplish business tasks D) procedures to convert back to the system after recovery
C
Parallel installation is the ________ style of installation. A) most preferred B) riskiest C) slowest D) least expensive
C
Projects that spend so much time ________ are sometimes said to be in analysis paralysis. A) in the system definition phase of the SDLC B) on project scheduling C) documenting requirements D) designing system components
C
Software developers group fixes for high priority failures into a ________ that can be applied to all copies of a given product. A) service pack B) debugger C) patch D) system fix
C
The ________ approach is the classical process used to develop information systems. A) rapid application development (RAD) B) object-oriented design (OOD) C) systems development life cycle (SDLC) D) extreme programming (XP)
C
The advantage of ________ installation is that if the system fails, the failure is contained within a limited boundary. A) phased B) parallel C) pilot D) plunge
C
The primary purpose of the requirements analysis phase is to ________. A) eliminate obviously nonsensible projects before forming a project development team B) identify the requisite skills needed in the IT personnel assigned to the project C) determine and document the specific features and functions of the new system D) investigate how much similar projects have cost in the past
C
Which is the most important phase in the systems development process? A) defining the goals and scope of the new information system B) implementing the information system C) determining the system's requirements D) adapting systems to changes in requirements
C
________ have the final say on whether a system is ready. A) Managers B) Systems analysts C) Users D) PQA personnel
C
12) ________ systems improve decision making by using the discovered patterns and relationships to anticipate events or to predict future outcomes. A) Knowledge management B) Expert C) Reporting D) Data-mining
D
14) The advantage that ________ have over the other systems is that these foster innovation, improve customer service, increase organizational responsiveness, and reduce costs. A) reporting systems B) expert systems C) data mining systems D) knowledge management systems
D
17) Problematic data are termed as ________. A) rough data B) clickstream data C) granular data D) dirty data
D
2) One ________ is equal to 103 bytes. A) petabyte B) gigabyte C) megabyte D) kilobyte
D
26) The purpose of a ________ is to extract and clean data from operational systems and other sources, and to store and catalog that data for processing by BI tools. A) data harvester B) data center C) data aggregator D) data warehouse
D
32) Which term is used as a synonym for data mining? A) OLAP B) neural networks C) market-basket analysis D) knowledge discovery in databases
D
38) ________ measures the impact of a set of variables on another variable. A) Cluster analysis B) Neural networking C) Granularity D) Regression analysis
D
4) One megabyte is equal to ________ bytes. A) 1,000 B) 1,000,000,000 C) 1,000,000,000,000 D) 1,000,000
D
9) ________ systems integrate data from multiple sources, and they process that data by sorting, grouping, summing, averaging, and comparing. A) Knowledge management B) Data-mining C) Expert D) Reporting
D
As staff size increases, ________. A) the average contribution per worker also increases B) diseconomies of scale tend to level off and eventually decrease C) economies of scale consistently increase almost proportionately D) more meetings and coordination activities are required to keep everyone in sync
D
During the ________ phase of the SDLC process, developers construct, install, and test the components of the information system. A) requirements analysis B) database design C) feasibility assessment D) implementation
D
Normal processing procedures for operations personnel are ________. A) procedures to continue operations when the system fails B) procedures for backing up data and other resources C) procedures for using the system to accomplish business tasks D) procedures for starting, stopping, and operating the system
D
One of the reasons for SDLC problems is due to the ________ nature of the SDLC. This implies that the systems development process is supposed to operate in a sequence of nonrepetitive phases. A) network B) clustered C) parallel D) waterfall
D
Which of the following is true of systems development? A) It has little need for human relations skills as tasks are performed by individuals, not groups. B) It is exclusively a technical task undertaken by programmers and hardware specialists. C) It is limited to the four domains of hardware, software, data, and procedures. D) It requires coordinated teamwork of both specialists and nonspecialists with business knowledge
D
Which of the following statements is true regarding the composition of the development team over the life of the SDLC? A) User involvement is limited to the integrated testing and conversion phase of the SDLC. B) During requirements definition, the team will be heavy with systems analysts. C) During integrated testing and conversion, the team is made up of only programmers and designers. D) During design and implementation, the team will be heavy with business users.
D
Which of the following statements is true with regard to the definition of requirements? A) Requirements determination is a simple, inexpensive process as it is limited to interviewing system users. B) Requirements should avoid specifying the volume of data to be stored and processed. C) Requirements determination should ideally focus on software and data components. D) Requirements include what is to be produced, as well as how frequently and how fast it is to be produced.
D
________ feasibility concerns whether the new information system fits within a company's customs, culture, charter, or legal requirements. A) Technical B) Functional C) Administrative D) Organizational
D
________ is the process of allowing future system users to try out the new system on their own. A) PQA testing B) Acceptance testing C) Pretesting D) Beta testing
D
________ refers to the process of moving the business activity from an old information system to a new system. A) System definition B) Test plan C) Parallel installation D) System conversion
D
systems analysts
If a company's IS-related programs are not developed in-house, then the development group of the IS department will be staffed primarily by ________.
SaaS
In ________, hardware and both operating system and application software are leased.
CEO
In organizations that operate significant nonaccounting information systems, such as manufacturers, a reporting arrangement wherein the CIO reports to the ________ is more common and effective.
CFO
In organizations where primary information systems support only accounting and finance activities, a reporting arrangement wherein the CIO reports to the ________ is practical.
competitive strategy
Information systems must be aligned with an organization's ________ to help it accomplish its goals and objectives.
following security and backup procedures.
Responsibility of an information systems user:
technology
The CTO heads the ________ group in the IS department
technology
The ________ group investigates new information systems and determines how the organization can benefit from them.
operations
The ________ group manages the computing infrastructure, including individual computers, in-house server farms, networks, and communications media.
development
The ________ group within the IS department manages the process of creating new information systems as well as maintaining existing information systems.
data administration
The ________ group's purpose is to protect information assets by establishing standards and management practices and policies.
the company develops programs in-house
The development group in a company's IS department is staffed primarily by programmers, test engineers, technical writers, and other development personnel. Based on this information, ______
CIO
This IS department's principal manager is the ____
Risk of outsourcing information systems.
Vendors can gain access to critical knowledge of the outsourcing company by:
Chief Operating Officer
____ is the staff functions that is at the top of most of typical senior-level reporting relationships.
contributing to requirements for new system features and functions
_____ is a right of a user of information systems.
determining system requirements
______ is a responsibility of a systems analyst
CIO
______ is another, more common title given to the director of computer services.
Information systems must evolve with the changes made in the organizational strategies
______ is the alignment between informations systems and organizations strategies.
Outsourcing
________ is the process of hiring another organization to perform a service.
Platform as a Service
________ refers to the leasing of hardware with pre-installed operating systems.
initiate, plan, manage, monitor, and close down projects
__________ responsibility of a small-scale project manager.