5386798
Pregunta 1
Pregunta
In the extremist groups case study, what approach is used to discover the ideology and fund raising of extremist groups through their Web sites?
Respuesta
-
content analysis
-
hyperlink analysis
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e-mail responses to questions sent to the sites
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physical visits to addresses on the site
Pregunta 2
Pregunta
Search engines do not search the entire Web every time a user makes a search request, for all the following reasons EXCEPT
Respuesta
-
most users are not interested in searching the entire Web.
-
the Web is too complex to be searched each time.
-
it would take longer than the user could wait.
Pregunta 3
Pregunta
Breaking up a Web page into its components to identify worthy words/terms and indexing them using a set of rules is called
Respuesta
-
parsing the documents.
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creating the term-by-document matrix.
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preprocessing the documents.
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document analysis.
Pregunta 4
Pregunta
PageRank for Webpages is useful to Web developers for which of the following reasons?
Respuesta
-
It gives developers insight into Web user behavior.
-
It is used in citation analysis for scholarly papers.
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Developing many Web pages with low PageRank can help a Web site attract users.
-
They uniquely identify the Web page developer for greater accountability.
Pregunta 5
Pregunta
Search engine optimization (SEO) is a means by which
Respuesta
-
Web site developers can increase Web site search rankings.
-
Web site developers can negotiate better deals for paid ads.
-
Web site developers index their Web sites for search engines.
-
Web site developers optimize the artistic features of their Web sites.
Pregunta 6
Pregunta
In general, what is the best kind of Web traffic to a Web site?
Respuesta
-
organic Web traffic
-
European Web traffic
-
paid Web traffic
-
bot-generated traffic
Pregunta 7
Pregunta
Clickstream analysis is most likely to be used for all the following types of applications EXCEPT
Respuesta
-
determining the lifetime value of clients.
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hiring new functional area managers.
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designing cross-marketing strategies across products.
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predicting user behavior.
Pregunta 8
Pregunta
What are the two main types of Web analytics?
Respuesta
-
off-site and on-site Web analytics
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old-school and new-school Web analytics
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Bing and Google Web analytics
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data-based and subjective Web analytics
Pregunta 9
Pregunta
Web site usability may be rated poor if
Respuesta
-
Web site visitors download few of your offered PDFs and videos.
-
the average number of page views on your Web site is large.
-
the time spent on your Web site is long.
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users fail to click on all pages equally.
Pregunta 10
Pregunta
Common sources of traffic to your Web site include all of the following EXCEPT
Respuesta
-
accidental visitors.
-
paid search from search engines.
-
referral Web sites.
-
direct links.
Pregunta 11
Pregunta
Understanding which keywords your users enter to reach your Web site through a search engine can help you understand
Respuesta
-
how well visitors understand your products.
-
the hardware your Web site is running on.
-
the type of Web browser being used by your Web site visitors.
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most of your Web site visitors' wants and needs.
Pregunta 12
Pregunta
Which of the following statements about Web site conversion statistics is FALSE?
Respuesta
-
Visitors who begin a purchase on most Web sites must complete it.
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Web site visitors can be classed as either new or returning.
-
The conversion rate is the number of people who take action divided by the number of visitors.
-
Analyzing exit rates can tell you why visitors left your Web site.
Pregunta 13
Pregunta
A voice of customer (VOC) strategy involves all of the following EXCEPT
Respuesta
-
connecting captured insights to unstructured data in order to take action.
-
capturing both unstructured Web data and enterprise data as a starting point.
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analyzing unstructured data with minimal effort on the user's part.
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taking actions related to your market, customers and services.
Pregunta 14
Pregunta
All of the following statements about social networks are true EXCEPT
Respuesta
-
companies should invest equally to retain all members of a group.
-
it is possible to gain insights into how products go viral.
-
members of a group are affected by the behavior of others in the group.
-
a group with all interconnected individuals is called a clique.
Pregunta 15
Pregunta
What is one major way that Web-based social media is the same as publishing media?
Respuesta
-
They can both reach a global audience.
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They cost the same to publish.
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They have the same immediacy of updates.
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They require the same skill and training to publish.
Pregunta 16
Pregunta
What is one major way in which Web-based social media differs from traditional publishing media?
Respuesta
-
They use different languages of publication.
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They have different costs to own and operate.
-
Most Web-based media are operated by the government and large firms.
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Web-based media have a narrower range of quality.
Pregunta 17
Pregunta
What does descriptive analytics for social media do?
Respuesta
-
It helps identify your followers.
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It identifies links between groups.
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It examines the content of online conversations.
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It identifies the biggest sources of influence online.
Pregunta 18
Pregunta
What does advanced analytics for social media do?
Respuesta
-
It examines the content of online conversations.
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It helps identify your followers.
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It identifies links between groups.
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It identifies the biggest sources of influence online.
Pregunta 19
Pregunta
What does Web content mining involve?
Respuesta
-
analyzing the unstructured content of Web pages
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analyzing the universal resource locator in Web pages
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analyzing the pattern of visits to a Web site
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analyzing the PageRank and other metadata of a Web page
Pregunta 20
Pregunta
What does Web structure mining involve?
Respuesta
-
analyzing the universal resource locators in Web pages
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analyzing the unstructured content of Web pages
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analyzing the pattern of visits to a Web site
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analyzing the PageRank and other metadata of a Web page
Pregunta 21
Pregunta
Using modeling for decision support can currently achieve all of the following EXCEPT
Respuesta
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replace strategy formulation at top levels of the organization
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enhance the decision making process
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enable organizations to see likely results of their decisions
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reduce the costs of providing services to customers
Pregunta 22
Pregunta
Environmental scanning is important for all of the following reasons EXCEPT
Respuesta
-
environments have greater impact on a model than the organization does.
-
organizational culture is important and affects the model use.
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it is critical to identify key corporate decision makers
-
environmental factors may have created the current problem
Pregunta 23
Pregunta
Today, it is critical for companies to consider
Respuesta
-
All of these
-
how to get products to the right customer.
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how to sell products at the right price
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how to package products in the right format.
Pregunta 24
Pregunta
Models can be built with the help of human knowledge and expertise. Another source of help in building these models is
Respuesta
-
classification and clustering methods
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the customer.
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customer service reps.
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business partners
Pregunta 25
Pregunta
What is an influence diagram?
Respuesta
-
a graphical representation of a model
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a diagram showing the influence of decision makers
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a map of the environment around decision makers
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a map of the environment around a model
Pregunta 26
Pregunta
Spreadsheets are particularly useful for all of the following reasons EXCEPT
Respuesta
-
they easily import and manipulate massive databases.
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they are able to import and export to many different file formats.
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it is easy to manipulate data and see results instantly
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they can be used to build static and dynamic models.
Pregunta 27
Pregunta
Linear programming belongs to a family of tools called
Respuesta
-
mathematical programming models.
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decision tree models.
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qualitative models
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heuristic programming models.
Pregunta 28
Pregunta
Which of the following is NOT a component of a linear programming problem?
Respuesta
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internal metrics
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constraints
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objective function
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decision variables
Pregunta 29
Pregunta
In an LP model, what does the fourth hidden component contain
Respuesta
-
product mix variables
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slack and surplus variables
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financial and accounting variables
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constraint and limit variables
Pregunta 30
Pregunta
Managers in organizations typically have
Respuesta
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multiple goals that need to be simultaneously or jointly optimized.
-
single goals that can be optimized using linear and nonlinear programming
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a small number of goals that can be independently optimized using linear and nonlinear programming.
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single goals that cannot be optimized using linear and nonlinear programming.
Pregunta 31
Pregunta
Sensitivity analysis is important in management support systems for all of the following reasons EXCEPT
Respuesta
-
it improves the mathematical optimality of the generated solutions.
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it permits the manager to input data to increase his/her confidence in the model.
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it provides a better understanding of the model and the decision-making situation.
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it allows flexibility and adaptation to changing conditions.
Pregunta 32
Pregunta
The question "What will total earnings be if we reduce our inventory stocking costs by 10%?" is a type of
Respuesta
-
what-if analysis.
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goal-seeking analysis.
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sensitivity analysis.
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utility modeling
Pregunta 33
Pregunta
The question "What advertising budget is needed to increase market share by 7%?" is a type of
Respuesta
-
goal-seeking analysis
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what-if analysis.
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sensitivity analysis.
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utility modeling.
Pregunta 34
Pregunta
The question "How many servers will be needed to reduce the waiting time of restaurant customers to less than 9 minutes?" is a type of
Respuesta
-
goal-seeking analysis.
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what-if analysis.
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sensitivity analysis.
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utility modeling.
Pregunta 35
Pregunta
Decision trees are best suited to solve what types of problems?
Respuesta
-
problems with a single goal
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roblems with a large number of alternatives
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problems with a tabular representation
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problems where probabilities are unknown
Pregunta 36
Pregunta
In handling uncertainty in decision modeling, the optimistic approach assumes
Respuesta
-
the best possible outcome of each alternative will occur.
-
the best possible outcome of most alternatives will occur.
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the best possible outcome of some alternatives will occur.
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the best possible outcome of one alternative will occur.
Pregunta 37
Pregunta
In handling uncertainty in decision modeling, what does the pessimistic approach do?
Respuesta
-
It assumes the worst possible outcome of each alternative will occur and then selects the best of them.
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It assumes the worst possible outcome of one alternative will occur and then avoids it.
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It assumes the worst possible outcome of some alternatives will occur and then selects the best of them.
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It assumes the worst possible outcome of each alternative will occur and then selects the worst of them.
Pregunta 38
Pregunta
Which of the following statements about expected utility is true?
Respuesta
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Used in decision making, it can bring huge risk to a small startup with limited resources.
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It does not affect decisions made with expected values.
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Used in decision making, it is an objective value, not subjective.
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In calculating utility, it assumes the decision will be made thousands of times, making the probabilities more likely on average.
Pregunta 39
Pregunta
Which of the following statements about the analytic hierarchy process (AHP) is true?
Respuesta
-
It can handle multiple criteria and goals.
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It is really not a decision model at all.
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It is based entirely on quantitative data.
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It is an opaque "black box" in the same way as neural networks.
Pregunta 40
Pregunta
Which of the following statements about the end-of-chapter CARE International case study is true?
Respuesta
-
CARE's objective was to respond to natural disasters faster.
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CARE ran its own shipping operation with vehicles that needed route optimization.
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CARE used a linear programming model for optimization.
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CARE set out to exclusively use international suppliers with large capacity to better serve people affected by disasters.
Pregunta 41
Pregunta
How does blind search differ from optimization?
Respuesta
-
Blind search usually does not conclude in one step like some optimization methods.
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Blind search cannot result in optimal solutions whereas optimization methods do.
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Blind search is usually a more efficient problem solving approach than optimization.
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Blind search represents a guided approach while optimization is unguided.
Pregunta 42
Pregunta
In modeling, an optimal solution is understood to be
Respuesta
-
a solution that is the best based on criteria defined in the design phase.
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a solution found in the least possible time and using the least possible computing resources.
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a solution that can only be determined by an exhaustive enumeration and testing of alternatives.
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a solution that requires an algorithm for determination.
Pregunta 43
Pregunta
When is a complete enumeration of solutions used?
Respuesta
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when there is enough time and computational power available
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when there are an infinite number of solutions to be searched
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when the modeler requires a guided approach to problem solving
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when a solution that is "good enough" is fine and good heuristics are available
Pregunta 44
Pregunta
All of the following are true about heuristics EXCEPT
Respuesta
-
heuristics are used when there is abundant time and computational power.
-
heuristics are rules of good judgment.
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heuristics are used when the modeler requires a guided approach to problem solving.
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heuristics are used when a solution that is "good enough" is sought.
Pregunta 45
Pregunta
Which approach is most suited to structured problems with little uncertainty?
Respuesta
-
optimization
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simulation
-
genetic algorithms
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human intuition
Pregunta 46
Pregunta
Genetic algorithms belong to the family of methods in the
Respuesta
-
artificial intelligence area.
-
optimization area.
-
complete enumeration family of methods.
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non-computer based (human) solutions area.
Pregunta 47
Pregunta
All of the following are suitable problems for genetic algorithms EXCEPT
Respuesta
-
simple optimization with few variables.
-
dynamic process control.
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simulation of biological models.
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pattern recognition with complex patterns.
Pregunta 48
Pregunta
Which approach is most suited to complex problems with significant uncertainty, a need for experimentation, and time compression?
Respuesta
-
simulation
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genetic algorithms
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optimization
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human intuition
Pregunta 49
Pregunta
Which of the following is an advantage of simulation?
Respuesta
-
It can incorporate significant real-life complexity.
-
It always results in optimal solutions.
-
It solves problems in one pass with no iterations.
-
Simulation software requires special skills.
Pregunta 50
Pregunta
In which stage of the simulation methodology do you determine the variables and gather data?
Respuesta
-
constructing the simulation model
-
defining the problem
-
designing the experiment
-
testing and validating the model
Pregunta 51
Pregunta
In which stage of the simulation methodology do you determine how long to run the simulation?
Respuesta
-
designing the experiment
-
defining the problem
-
testing and validating the model
-
constructing the simulation model
Pregunta 52
Pregunta
In which stage of the simulation methodology do you determine the system's boundaries and environment?
Respuesta
-
defining the problem
-
designing the experiment
-
testing and validating the model
-
constructing the simulation model
Pregunta 53
Pregunta
What BEST describes a simulation model with a limited number of variables, each with a finite number of values?
Respuesta
-
discrete event simulation
-
Monte Carlo simulation
-
continuous distribution simulation
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system dynamics simulation
Pregunta 54
Pregunta
What BEST describes a simulation model in which it is not important to know exactly when a modeled event occurred?
Respuesta
-
time-independent simulation
-
system dynamics simulation
-
discrete event simulation
-
continuous distribution simulation
Pregunta 55
Pregunta
The advantages of visual interactive simulation include all of the following EXCEPT
Respuesta
-
reduced need for decision maker involvement.
-
the ability to see how a simulation works.
-
improved presentation of simulation results.
-
improvements in training using the simulation
Pregunta 56
Pregunta
What can system dynamics modeling be used for?
Respuesta
-
qualitative methods for analyzing a system
-
micro-level simulation models that examine individual values
-
simulation models that test each subsystem in isolation
-
studying system behavior at an instant in time
Pregunta 57
Pregunta
The EHR (electronic health record) system dynamics modeling example showed that
Respuesta
-
increased staff training results in increased electronic prescriptions.
-
e-notes negatively affect radiology performance.
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increased electronic note-taking negatively affects compliance.
-
adverse drug events help to decrease patient time.
Pregunta 58
Pregunta
In agent-based modeling, agents are
Respuesta
-
autonomous rule-based decision making units.
-
the human workers or agents who use the system.
-
the hardware platform used to conduct the simulation.
-
communication links between simulations.
Pregunta 59
Pregunta
Agent-based modeling is best for all the following types of problem features EXCEPT
Respuesta
-
low uncertainty.
-
many interrelated factors.
-
irregular data.
-
complex interactions.
Pregunta 60
Pregunta
What is the final stage of an agent-based modeling (ABM) methodology?
Respuesta
-
validating agent behavior against reality
-
identifying the agents and determining their behavior
-
determining the suitability of ABM
-
determining agent-related data
Pregunta 61
Pregunta
In the InterContinental Hotel Group case study, the mathematical model used to increase profits was based on
Respuesta
-
a simulation model that tried out many options.
-
an optimization model that used multiple variables.
-
a system that collated the subjective inputs of managers.
-
a mathematical model that used two variables: price and day of the week.
Pregunta 62
Pregunta
Who are automated decision systems (ADS) primarily designed for?
Respuesta
-
frontline workers who must make decisions rapidly
-
strategic level managers making long-term, wide-ranging decisions
-
mid-level managers making tactical decision
-
operational managers who make shop floor decisions
Pregunta 63
Pregunta
In the Giant Food Stores case study, the new pricing model deployment system included all the following features EXCEPT
Respuesta
-
it required more staff to make pricing changes.
-
it could handle large numbers of price changes.
-
it used point of sale and competitive data as inputs.
-
it had a predictive capability.
Pregunta 64
Pregunta
Revenue management systems modify the prices of products and services dynamically based on
Respuesta
-
business rules, demand, and supply.
-
intuition, demand, and supply.
-
intuition, competition, and supply.
-
business rules, supply, and intuition.
Pregunta 65
Pregunta
What would explain why a divorce attorney in New York City may not be considered an expert in Beijing, China?
Respuesta
-
Expertise is frequently domain dependent.
-
You need a greater level of experience in Beijing to practice law.
-
No criteria to evaluate divorce attorneys exist in Beijing.
-
The divorce attorney in New York does not speak Mandarin.
Pregunta 66
Pregunta
What does self-knowledge in an expert system (ES) mean?
Respuesta
-
The ES can explain how it reached a conclusion.
-
An ES understands itself in a very human sense.
-
An ES understands the human decision maker.
-
The ES "knows" that it exists.
Pregunta 67
Pregunta
How does an expert system differ from conventional systems?
Respuesta
-
Expert systems handle qualitative data easily.
-
Changes in an expert system are tedious to make.
-
The expert system operates only when it is complete.
-
Execution of expert system programs is algorithmic or step-by-step.
Pregunta 68
Pregunta
In the sport talents identification case study, the expert system was calibrated with expertise from
Respuesta
-
subjects in the cases used to create the ES.
-
multiple sports experts.
-
one overall sports expert.
-
the system developer.
Pregunta 69
Pregunta
In the chemical, biological, and radiological agents case study, the CBR Advisor program had all the following features EXCEPT
Respuesta
-
it was available online to the general public.
-
it could provide advice even incomplete information.
-
it was tailored to different types of users.
-
it was created by multiple experts.
Pregunta 70
Pregunta
The MYCIN Expert System was used to diagnose bacterial infections using
Respuesta
-
a set of 500 rules on the subject.
-
a simulation model that tried out many options.
-
an optimization model.
-
an expert system whose performance was inferior to human experts.
Pregunta 71
Pregunta
Which module is missing from most expert systems?
Respuesta
-
knowledge refinement subsystem
-
user interface subsystem
-
knowledge base subsystem
-
inference engine
Pregunta 72
Pregunta
All the following statements about how an expert system operates are true EXCEPT
Respuesta
-
inference engines contain an explanation subcomponent.
-
incorporated knowledge is drawn exclusively from human experts.
-
a knowledge engineer creates inferencing rules.
-
knowledge rules are stored in the knowledge base.
Pregunta 73
Pregunta
In the heart disease diagnosis case study, what was a benefit of the SIPMES expert system?
Respuesta
-
The SIPMES system could diagnose all types of cardiovascular diseases.
-
Expert systems from other domains were used, saving development time.
-
The SIPMES system agreed with human experts 64% of the time.
-
No human expert knowledge was needed in development, only textbook knowledge.
Pregunta 74
Pregunta
Which of the following is NOT a stage of knowledge engineering?
Respuesta
-
knowledge consolidation
-
knowledge representation
-
knowledge acquisition
-
knowledge validation
Pregunta 75
Pregunta
It is difficult to acquire knowledge from experts for all the following reasons EXCEPT
Respuesta
-
many business areas have no identifiable experts.
-
experts may not be able to put into words how they conduct their work.
-
testing and refining of knowledge is complex and difficult.
-
experts often change their behavior when observed.
Pregunta 76
Pregunta
Using certainty factors, a rule declares that IF competition is strong, CF = 70 AND margins are above 15% CF = 100 THEN sales demand will decline. If both conditions are true, what is the CF of the conclusion?
Respuesta
-
70%
-
100%
-
30%
-
21%
Pregunta 77
Pregunta
Using certainty factors, a rule declares that IF competition is strong, CF = 70 OR margins are above 15% CF = 100 THEN sales demand will decline. If both conditions are true, what is the CF of the conclusion?
Respuesta
-
100%
-
70%
-
30%
-
21%
Pregunta 78
Pregunta
Which category of expert systems that includes weather forecasting and economic/financial forecasting?
Respuesta
-
prediction ES
-
diagnostic ES
-
planning ES
-
instruction ES
Pregunta 79
Pregunta
Which tool would be best to use when there is a need to very rapidly and cheaply develop a rule-based expert system?
Respuesta
-
an ES shell
-
LISP or Prolog languages
-
ASP.NET
-
C++
Pregunta 80
Pregunta
In the Clinical Decision Support System case study, what was the system's output?
Respuesta
-
a treatment and rehabilitation plan for the patient
-
a diagnosis of the type of tendon injury suffered by the patient
-
an explanation of the tendon anatomy of the patient
-
a referral to specialists who could accurately diagnose the tendon injury
Pregunta 81
Pregunta
In the Army expertise transfer system case, what did 'knowledge harvesting' involve?
Respuesta
-
interviewing experts and transcribing and mining their knowledge
-
interviewing experts, posting their knowledge verbatim and seeking continual feedback
-
observing experts at work and documenting their expertise in different tasks
-
allowing experts to enter their knowledge directly into the knowledge system
Pregunta 82
Pregunta
Knowledge can be best described as
Respuesta
-
organized facts set in context and actionable.
-
facts, measurements, and statistics.
-
an organized collection or set of facts.
-
facts, measurements, and statistics that are validated.
Pregunta 83
Pregunta
Which of the following is NOT an attribute of knowledge?
Respuesta
-
The value of knowledge is easily quantified.
-
Knowledge is not subject to diminishing returns.
-
Knowledge fragments as it grows.
-
There is a need to refresh knowledge periodically for competitive advantage.
Pregunta 84
Pregunta
Which is an example of conditional knowledge?
Respuesta
-
when to install a new part in a faulty car
-
what new part is appropriate to fix a faulty car
-
how to install a new part in a faulty car
-
why a new part fixes a faulty car
Pregunta 85
Pregunta
Which is an example of declarative knowledge?
Respuesta
-
what new part is appropriate to fix a faulty car
-
how to install a new part in a faulty car
-
when to install a new part in a faulty car
-
why a new part fixes a faulty car
Pregunta 86
Pregunta
The term "leaky knowledge" MOST accurately refers to
Respuesta
-
explicit knowledge.
-
tacit knowledge.
-
individual knowledge.
-
social knowledge.
Pregunta 87
Pregunta
Which approach to knowledge management capitalizes on tacit knowledge and requires heavy IT investment?
Respuesta
-
the process approach
-
the practice approach
-
the IT approach
-
the systems approach
Pregunta 88
Pregunta
During which stage of the KMS cycle are human insights captured together with explicit facts?
Respuesta
-
the refining knowledge stage
-
the managing knowledge stage
-
the disseminating knowledge stage
-
the storing knowledge stage
Pregunta 89
Pregunta
During which stage of the KMS cycle is knowledge made available to intended users?
Respuesta
-
the disseminating knowledge stage
-
the managing knowledge stage
-
the refining knowledge stage
-
the storing knowledge stage
Pregunta 90
Pregunta
Which technology element of knowledge management systems enables document sharing among decision makers?
Respuesta
-
collaboration
-
communication
-
storage
-
retrieval
Pregunta 91
Pregunta
Which set of technologies that support knowledge management is characterized by mashups, blogs, social networks, and wikis?
Respuesta
-
Web 2.0
-
artificial intelligence
-
XML
-
ERP
Pregunta 92
Pregunta
Distractions, groupthink, and digressions that occur in groupwork are known as
Respuesta
-
process losses.
-
malfunctions.
-
misunderstandings
-
group failure.
Pregunta 93
Pregunta
All the following are negative aspects of working in groups EXCEPT
Respuesta
-
it is more difficult to catch errors
-
there can be a lack of coordination
-
it is time-consuming
-
participants may be afraid to contribute
Pregunta 94
Pregunta
Videoconferencing is an example of what kind of groupware?
Respuesta
-
same time, different place
-
same time, same place
-
different time, same place
-
different time, different place
Pregunta 95
Pregunta
Which of the following is the best example of asynchronous communication?
Respuesta
-
e-mail
-
multimedia presentation system
-
teleconference
-
videoconference
Pregunta 96
Pregunta
Which groupware tools are associated with synchronous use?
Respuesta
-
VoIP and instant messaging
-
e-mail and web conferencing
-
VoIP and wikilogs
-
Web conference and online workspaces
Pregunta 97
Pregunta
All of the following statements about wikis are true EXCEPT
Respuesta
-
the wiki owner is responsible for the wiki organization.
-
Wikis run on a server.
-
the majority of Wiki content is user-created.
-
Wiki pages are usually highly interconnected though links.
Pregunta 98
Pregunta
What is the major difference between group support systems (GSS) and group decision support systems (GDSS)?
Respuesta
-
GDSS have a narrower focus than GSS.
-
GSS use modern technology; GDSS do not.
-
GSS use Web based technologies; GDSS do not.
-
GDSS do not support virtual teams, but GSS do.
Pregunta 99
Pregunta
What software or facility is best for a small firm spread out across the Northeast U.S. looking to inexpensively conduct regular videoconferencing?
Respuesta
-
WebEx
-
Excel
-
decision rooms
-
SharePoint
Pregunta 100
Pregunta
In the digital forensics case study, what was the main obstacle to knowledge sharing?
Respuesta
-
Many departments and agencies were effectively functional silos
-
Laws existed to prevent agencies sharing techniques and experience.
-
There was an extreme lack of Internet security.
-
There was a need to keep each case experience "clean" and untainted by others.
Pregunta 101
Pregunta
Using data to understand customers/clients and business operations to sustain and foster
growth and profitability is
Respuesta
-
an increasingly challenging task for today's enterprises.
-
easier with the advent of BI and Big Data
-
essentially the same now as it has always been.
-
now completely automated with no human intervention required.
Pregunta 102
Pregunta
A newly popular unit of data in the Big Data era is the petabyte (PB), which is
Respuesta
-
10^15 bytes.
-
10^9 bytes.
-
10^12 bytes.
-
10^18 bytes.
Pregunta 103
Pregunta
Which of the following sources is likely to produce Big Data the fastest?
Respuesta
-
RFID tags
-
order entry clerks
-
cashiers
-
online customers
Pregunta 104
Pregunta
Data flows can be highly inconsistent, with periodic peaks, making data loads hard to manage. What is this feature of Big Data called?
Respuesta
-
Variability
-
volatility
-
periodicity
-
inconsistency
Pregunta 105
Pregunta
In the Luxottica case study, what technique did the company use to gain visibility into its customers?
Respuesta
-
data integration
-
visibility analytics
-
focus on growth
-
customer focus
Pregunta 106
Pregunta
Allowing Big Data to be processed in memory and distributed across a dedicated set of nodes can solve complex problems in near real time with highly accurate insights. What is this process called?
Respuesta
-
in-memory analytics
-
in-database analytics
-
grid computing
-
appliances
Pregunta 107
Pregunta
Which Big Data approach promotes efficiency, lower cost, and better performance by processing jobs in a shared, centrally managed pool of IT resources?
Respuesta
-
grid computing
-
in-memory analytics
-
in-database analytics
-
appliances
Pregunta 108
Pregunta
How does Hadoop work?
Respuesta
-
It breaks up Big Data into multiple parts so each part can be processed and analyzed at the same time on multiple computers.
-
It integrates Big Data into a whole so large data elements can be processed as a whole on one computer.
-
It integrates Big Data into a whole so large data elements can be processed as a whole on multiple computers.
-
It breaks up Big Data into multiple parts so each part can be processed and analyzed at the same time on one computer.
Pregunta 109
Pregunta
What is the Hadoop Distributed File System (HDFS) designed to handle?
Respuesta
-
unstructured and semistructured non-relational data
-
unstructured and semistructured relational data
-
structured and semistructured relational data
-
structured and semistructured non-relational data
Pregunta 110
Pregunta
In a Hadoop "stack," what is a slave node?
Respuesta
-
a node where data is stored and processed
-
a node where bits of programs are stored
-
a node where metadata is stored and used to organize data processing
-
a node responsible for holding all the source programs
Pregunta 111
Pregunta
In a Hadoop "stack," what node periodically replicates and stores data from the Name Node should it fail?
Respuesta
-
secondary node
-
backup node
-
substitute node
-
slave node
Pregunta 112
Pregunta
All of the following statements about MapReduce are true EXCEPT
Respuesta
-
MapReduce runs without fault tolerance.
-
MapReduce is a general-purpose execution engine.
-
MapReduce handles the complexities of network communication.
-
MapReduce handles parallel programming.
Pregunta 113
Pregunta
In the Big Data and Analytics in Politics case study, which of the following was an input to the analytic system?
Respuesta
-
census data
-
assessment of sentiment
-
voter mobilization
-
group clustering
Pregunta 114
Pregunta
In the Big Data and Analytics in Politics case study, what was the analytic system output or goal?
Respuesta
-
voter mobilization
-
census data
-
assessment of sentiment
-
group clustering
Pregunta 115
Pregunta
Traditional data warehouses have not been able to keep up with
Respuesta
-
the variety and complexity of data.
-
the evolution of the SQL language
-
expert systems that run on them.
-
OLAP.
Pregunta 116
Pregunta
Under which of the following requirements would it be more appropriate to use Hadoop over a data warehouse?
Respuesta
-
unrestricted, ungoverned sandbox explorations
-
ANSI 2003 SQL compliance is required
-
online archives alternative to tape
-
analysis of provisional data
Pregunta 117
Pregunta
What is Big Data's relationship to the cloud?
Respuesta
-
Amazon and Google have working Hadoop cloud offerings.
-
Hadoop cannot be deployed effectively in the cloud just yet.
-
IBM's homegrown Hadoop platform is the only option.
-
Only MapReduce works in the cloud; Hadoop does not.
Pregunta 118
Pregunta
Companies with the largest revenues from Big Data tend to be
Respuesta
-
the largest computer and IT services firms
-
small computer and IT services firms.
-
pure open source Big Data firms.
-
non-U.S. Big Data firms.
Pregunta 119
Pregunta
In the health sciences, the largest potential source of Big Data comes from
Respuesta
-
patient monitoring.
-
accounting systems.
-
human resources.
-
research administration.
Pregunta 120
Pregunta
In the Discovery Health insurance case study, the analytics application used available data to help the company do all of the following EXCEPT
Respuesta
-
open its own pharmacy.
-
predict customer health.
-
detect fraud.
-
lower costs for members.
Pregunta 121
Pregunta
What kind of location based analytics is real-time marketing promotion?
Respuesta
-
organization-oriented location-based dynamic approach
-
organization-oriented geospatial static approach
-
consumer-oriented geospatial static approach
-
consumer-oriented location-based dynamic approach
Pregunta 122
Pregunta
GPS Navigation is an example of which kind of location based analytics?
Respuesta
-
consumer-oriented geospatial static approach
-
organization-oriented geospatial static approach
-
organization-oriented location-based dynamic approach
-
consumer-oriented location-based dynamic approach
Pregunta 123
Pregunta
What new geometric data type in Teradata's data warehouse captures geospatial features?
Respuesta
-
ST_GEOMETRY
-
NAVTEQ
-
GIS
-
SQL/MM
Pregunta 124
Pregunta
A British company called Path Intelligence has developed a system that ascertains how people move within a city or even within a store. What is this system called?
Respuesta
-
Footpath
-
Pathfinder
-
PathMiner
-
Pathdata
Pregunta 125
Pregunta
Today, most smartphones are equipped with various instruments to measure jerk, orientation, and sense motion. One of these instruments is an accelerometer, and the other is a(n)
Respuesta
-
gyroscope.
-
potentiometer.
-
microscope
-
oscilloscope.
Pregunta 126
Pregunta
Content-based filtering obtains detailed information about item characteristics and restricts this process to a single user using information tags or
Respuesta
-
keywords.
-
passphrases.
-
key-pairs.
-
reality mining
Pregunta 127
Pregunta
Service-oriented thinking is one of the fastest growing paradigms in today's economy. Which of the following is NOT a characteristic of service-oriented DSS?
Respuesta
-
originality
-
reusability
-
substitutability
-
extensibility
Pregunta 128
Pregunta
All of the following are components in a service-oriented DSS environment EXCEPT
Respuesta
-
data as infrastructure.
-
information technology as enabler.
-
process as beneficiary.
-
people as user.
Pregunta 129
Pregunta
Which of the following is true of data-as-a-Service (DaaS) platforms?
Respuesta
-
There are standardized processes for accessing data wherever it is located.
-
Knowing where the data resides is critical to the functioning of the platform.
-
Business processes can access local data only.
-
Data quality happens on each individual platform.
Pregunta 130
Pregunta
Which component of service-oriented DSS can be described as a subset of a data warehouse that supports specific decision and analytical needs and provides business units more flexibility, control, and responsibility?
Respuesta
-
data marts
-
information delivery portals
-
information services with library and administrator
-
extract, transform, load
Pregunta 131
Pregunta
Which component of service-oriented DSS can be described as optimizing the DSS environment use by organizing its capabilities and knowledge, and assimilating them into the business processes?
Respuesta
-
information services with library and administrator
-
information delivery portals
-
extract, transform, load
-
data marts
Pregunta 132
Pregunta
Which component of service-oriented DSS can be defined as data that describes the meaning and structure of business data, as well as how it is created, accessed, and used?
Respuesta
-
metadata management
-
application programming interface
-
analytics
-
operations and administration
Pregunta 133
Pregunta
Which component of service-oriented DSS includes such examples as optimization, data mining, text mining, simulation, automated decision systems?
Respuesta
-
analytics
-
application programming interface
-
operations and administration
-
metadata management
Pregunta 134
Pregunta
Which of the following offers a flexible data integration platform based on a newer generation of service-oriented standards that enables ubiquitous access to any type of data?
Respuesta
-
IaaS
-
EAI
-
EII
-
ETL
Pregunta 135
Pregunta
When new analytics applications are introduced and affect multiple related processes and departments, the organization is best served by utilizing
Respuesta
-
business process reengineering
-
business flow management.
-
multi-department analysis.
-
process flow analysis.
Pregunta 136
Pregunta
Research into managerial use of DSS and expert systems found all the following EXCEPT
Respuesta
-
managers spent more time in the office and less in the field.
-
managers spent more of their time planning.
-
managers saw their decision making quality enhanced.
-
managers were able to devote less of their time fighting fires
Pregunta 137
Pregunta
Why do analytics applications have the effect of redistributing power among managers?
Respuesta
-
The more information and analysis managers have, the more power they possess.
-
Sponsoring an analytics system automatically confers power to a manager.
-
New analytics applications change managers' job expectations.
-
New analytics systems lead to new budget allocations, resulting in increased power.
Pregunta 138
Pregunta
Services that let consumers permanently enter a profile of information along with a password and use this information repeatedly to access services at multiple sites are called
Respuesta
-
single-sign-on facilities.
-
consumer access applications.
-
information collection portals.
-
consumer information sign on facilities.
Pregunta 139
Pregunta
Which of the following is true about the furtherance of homeland security?
Respuesta
-
There is a greater need for oversight.
-
There is a lessening of privacy issues.
-
The impetus was the need to harvest information related to financial fraud after 2001.
-
Most people regard analytic tools as mostly ineffective in increasing security.
Pregunta 140
Pregunta
Which of the following is considered the economic engine of the whole analytics industry?
Respuesta
-
analytics user organizations
-
application developers and system integrators
-
analytics industry analysts and influencers
-
academic providers and certification industries
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