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Chris MD
Quiz por Chris MD, atualizado more than 1 year ago
Chris MD
Criado por Chris MD mais de 8 anos atrás
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Questão 1

Questão
In the extremist groups case study, what approach is used to discover the ideology and fund raising of extremist groups through their Web sites?
Responda
  • content analysis
  • hyperlink analysis
  • e-mail responses to questions sent to the sites
  • physical visits to addresses on the site

Questão 2

Questão
Search engines do not search the entire Web every time a user makes a search request, for all the following reasons EXCEPT
Responda
  • 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.

Questão 3

Questão
Breaking up a Web page into its components to identify worthy words/terms and indexing them using a set of rules is called
Responda
  • parsing the documents.
  • creating the term-by-document matrix.
  • preprocessing the documents.
  • document analysis.

Questão 4

Questão
PageRank for Webpages is useful to Web developers for which of the following reasons?
Responda
  • It gives developers insight into Web user behavior.
  • It is used in citation analysis for scholarly papers.
  • Developing many Web pages with low PageRank can help a Web site attract users.
  • They uniquely identify the Web page developer for greater accountability.

Questão 5

Questão
Search engine optimization (SEO) is a means by which
Responda
  • 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.

Questão 6

Questão
In general, what is the best kind of Web traffic to a Web site?
Responda
  • organic Web traffic
  • European Web traffic
  • paid Web traffic
  • bot-generated traffic

Questão 7

Questão
Clickstream analysis is most likely to be used for all the following types of applications EXCEPT
Responda
  • determining the lifetime value of clients.
  • hiring new functional area managers.
  • designing cross-marketing strategies across products.
  • predicting user behavior.

Questão 8

Questão
What are the two main types of Web analytics?
Responda
  • off-site and on-site Web analytics
  • old-school and new-school Web analytics
  • Bing and Google Web analytics
  • data-based and subjective Web analytics

Questão 9

Questão
Web site usability may be rated poor if
Responda
  • 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.
  • users fail to click on all pages equally.

Questão 10

Questão
Common sources of traffic to your Web site include all of the following EXCEPT
Responda
  • accidental visitors.
  • paid search from search engines.
  • referral Web sites.
  • direct links.

Questão 11

Questão
Understanding which keywords your users enter to reach your Web site through a search engine can help you understand
Responda
  • 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.
  • most of your Web site visitors' wants and needs.

Questão 12

Questão
Which of the following statements about Web site conversion statistics is FALSE?
Responda
  • Visitors who begin a purchase on most Web sites must complete it.
  • 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.

Questão 13

Questão
A voice of customer (VOC) strategy involves all of the following EXCEPT
Responda
  • connecting captured insights to unstructured data in order to take action.
  • capturing both unstructured Web data and enterprise data as a starting point.
  • analyzing unstructured data with minimal effort on the user's part.
  • taking actions related to your market, customers and services.

Questão 14

Questão
All of the following statements about social networks are true EXCEPT
Responda
  • 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.

Questão 15

Questão
What is one major way that Web-based social media is the same as publishing media?
Responda
  • They can both reach a global audience.
  • They cost the same to publish.
  • They have the same immediacy of updates.
  • They require the same skill and training to publish.

Questão 16

Questão
What is one major way in which Web-based social media differs from traditional publishing media?
Responda
  • They use different languages of publication.
  • They have different costs to own and operate.
  • Most Web-based media are operated by the government and large firms.
  • Web-based media have a narrower range of quality.

Questão 17

Questão
What does descriptive analytics for social media do?
Responda
  • It helps identify your followers.
  • It identifies links between groups.
  • It examines the content of online conversations.
  • It identifies the biggest sources of influence online.

Questão 18

Questão
What does advanced analytics for social media do?
Responda
  • It examines the content of online conversations.
  • It helps identify your followers.
  • It identifies links between groups.
  • It identifies the biggest sources of influence online.

Questão 19

Questão
What does Web content mining involve?
Responda
  • analyzing the unstructured content of Web pages
  • analyzing the universal resource locator in Web pages
  • analyzing the pattern of visits to a Web site
  • analyzing the PageRank and other metadata of a Web page

Questão 20

Questão
What does Web structure mining involve?
Responda
  • analyzing the universal resource locators in Web pages
  • analyzing the unstructured content of Web pages
  • analyzing the pattern of visits to a Web site
  • analyzing the PageRank and other metadata of a Web page

Questão 21

Questão
Using modeling for decision support can currently achieve all of the following EXCEPT
Responda
  • replace strategy formulation at top levels of the organization
  • enhance the decision making process
  • enable organizations to see likely results of their decisions
  • reduce the costs of providing services to customers

Questão 22

Questão
Environmental scanning is important for all of the following reasons EXCEPT
Responda
  • environments have greater impact on a model than the organization does.
  • organizational culture is important and affects the model use.
  • it is critical to identify key corporate decision makers
  • environmental factors may have created the current problem

Questão 23

Questão
Today, it is critical for companies to consider
Responda
  • All of these
  • how to get products to the right customer.
  • how to sell products at the right price
  • how to package products in the right format.

Questão 24

Questão
Models can be built with the help of human knowledge and expertise. Another source of help in building these models is
Responda
  • classification and clustering methods
  • the customer.
  • customer service reps.
  • business partners

Questão 25

Questão
What is an influence diagram?
Responda
  • a graphical representation of a model
  • a diagram showing the influence of decision makers
  • a map of the environment around decision makers
  • a map of the environment around a model

Questão 26

Questão
Spreadsheets are particularly useful for all of the following reasons EXCEPT
Responda
  • they easily import and manipulate massive databases.
  • they are able to import and export to many different file formats.
  • it is easy to manipulate data and see results instantly
  • they can be used to build static and dynamic models.

Questão 27

Questão
Linear programming belongs to a family of tools called
Responda
  • mathematical programming models.
  • decision tree models.
  • qualitative models
  • heuristic programming models.

Questão 28

Questão
Which of the following is NOT a component of a linear programming problem?
Responda
  • internal metrics
  • constraints
  • objective function
  • decision variables

Questão 29

Questão
In an LP model, what does the fourth hidden component contain
Responda
  • product mix variables
  • slack and surplus variables
  • financial and accounting variables
  • constraint and limit variables

Questão 30

Questão
Managers in organizations typically have
Responda
  • multiple goals that need to be simultaneously or jointly optimized.
  • single goals that can be optimized using linear and nonlinear programming
  • a small number of goals that can be independently optimized using linear and nonlinear programming.
  • single goals that cannot be optimized using linear and nonlinear programming.

Questão 31

Questão
Sensitivity analysis is important in management support systems for all of the following reasons EXCEPT
Responda
  • it improves the mathematical optimality of the generated solutions.
  • it permits the manager to input data to increase his/her confidence in the model.
  • it provides a better understanding of the model and the decision-making situation.
  • it allows flexibility and adaptation to changing conditions.

Questão 32

Questão
The question "What will total earnings be if we reduce our inventory stocking costs by 10%?" is a type of
Responda
  • what-if analysis.
  • goal-seeking analysis.
  • sensitivity analysis.
  • utility modeling

Questão 33

Questão
The question "What advertising budget is needed to increase market share by 7%?" is a type of
Responda
  • goal-seeking analysis
  • what-if analysis.
  • sensitivity analysis.
  • utility modeling.

Questão 34

Questão
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
Responda
  • goal-seeking analysis.
  • what-if analysis.
  • sensitivity analysis.
  • utility modeling.

Questão 35

Questão
Decision trees are best suited to solve what types of problems?
Responda
  • problems with a single goal
  • roblems with a large number of alternatives
  • problems with a tabular representation
  • problems where probabilities are unknown

Questão 36

Questão
In handling uncertainty in decision modeling, the optimistic approach assumes
Responda
  • the best possible outcome of each alternative will occur.
  • the best possible outcome of most alternatives will occur.
  • the best possible outcome of some alternatives will occur.
  • the best possible outcome of one alternative will occur.

Questão 37

Questão
In handling uncertainty in decision modeling, what does the pessimistic approach do?
Responda
  • It assumes the worst possible outcome of each alternative will occur and then selects the best of them.
  • It assumes the worst possible outcome of one alternative will occur and then avoids it.
  • It assumes the worst possible outcome of some alternatives will occur and then selects the best of them.
  • It assumes the worst possible outcome of each alternative will occur and then selects the worst of them.

Questão 38

Questão
Which of the following statements about expected utility is true?
Responda
  • Used in decision making, it can bring huge risk to a small startup with limited resources.
  • It does not affect decisions made with expected values.
  • Used in decision making, it is an objective value, not subjective.
  • In calculating utility, it assumes the decision will be made thousands of times, making the probabilities more likely on average.

Questão 39

Questão
Which of the following statements about the analytic hierarchy process (AHP) is true?
Responda
  • It can handle multiple criteria and goals.
  • It is really not a decision model at all.
  • It is based entirely on quantitative data.
  • It is an opaque "black box" in the same way as neural networks.

Questão 40

Questão
Which of the following statements about the end-of-chapter CARE International case study is true?
Responda
  • CARE's objective was to respond to natural disasters faster.
  • CARE ran its own shipping operation with vehicles that needed route optimization.
  • CARE used a linear programming model for optimization.
  • CARE set out to exclusively use international suppliers with large capacity to better serve people affected by disasters.

Questão 41

Questão
How does blind search differ from optimization?
Responda
  • Blind search usually does not conclude in one step like some optimization methods.
  • Blind search cannot result in optimal solutions whereas optimization methods do.
  • Blind search is usually a more efficient problem solving approach than optimization.
  • Blind search represents a guided approach while optimization is unguided.

Questão 42

Questão
In modeling, an optimal solution is understood to be
Responda
  • a solution that is the best based on criteria defined in the design phase.
  • a solution found in the least possible time and using the least possible computing resources.
  • a solution that can only be determined by an exhaustive enumeration and testing of alternatives.
  • a solution that requires an algorithm for determination.

Questão 43

Questão
When is a complete enumeration of solutions used?
Responda
  • when there is enough time and computational power available
  • when there are an infinite number of solutions to be searched
  • when the modeler requires a guided approach to problem solving
  • when a solution that is "good enough" is fine and good heuristics are available

Questão 44

Questão
All of the following are true about heuristics EXCEPT
Responda
  • heuristics are used when there is abundant time and computational power.
  • heuristics are rules of good judgment.
  • heuristics are used when the modeler requires a guided approach to problem solving.
  • heuristics are used when a solution that is "good enough" is sought.

Questão 45

Questão
Which approach is most suited to structured problems with little uncertainty?
Responda
  • optimization
  • simulation
  • genetic algorithms
  • human intuition

Questão 46

Questão
Genetic algorithms belong to the family of methods in the
Responda
  • artificial intelligence area.
  • optimization area.
  • complete enumeration family of methods.
  • non-computer based (human) solutions area.

Questão 47

Questão
All of the following are suitable problems for genetic algorithms EXCEPT
Responda
  • simple optimization with few variables.
  • dynamic process control.
  • simulation of biological models.
  • pattern recognition with complex patterns.

Questão 48

Questão
Which approach is most suited to complex problems with significant uncertainty, a need for experimentation, and time compression?
Responda
  • simulation
  • genetic algorithms
  • optimization
  • human intuition

Questão 49

Questão
Which of the following is an advantage of simulation?
Responda
  • 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.

Questão 50

Questão
In which stage of the simulation methodology do you determine the variables and gather data?
Responda
  • constructing the simulation model
  • defining the problem
  • designing the experiment
  • testing and validating the model

Questão 51

Questão
In which stage of the simulation methodology do you determine how long to run the simulation?
Responda
  • designing the experiment
  • defining the problem
  • testing and validating the model
  • constructing the simulation model

Questão 52

Questão
In which stage of the simulation methodology do you determine the system's boundaries and environment?
Responda
  • defining the problem
  • designing the experiment
  • testing and validating the model
  • constructing the simulation model

Questão 53

Questão
What BEST describes a simulation model with a limited number of variables, each with a finite number of values?
Responda
  • discrete event simulation
  • Monte Carlo simulation
  • continuous distribution simulation
  • system dynamics simulation

Questão 54

Questão
What BEST describes a simulation model in which it is not important to know exactly when a modeled event occurred?
Responda
  • time-independent simulation
  • system dynamics simulation
  • discrete event simulation
  • continuous distribution simulation

Questão 55

Questão
The advantages of visual interactive simulation include all of the following EXCEPT
Responda
  • 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

Questão 56

Questão
What can system dynamics modeling be used for?
Responda
  • 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

Questão 57

Questão
The EHR (electronic health record) system dynamics modeling example showed that
Responda
  • increased staff training results in increased electronic prescriptions.
  • e-notes negatively affect radiology performance.
  • increased electronic note-taking negatively affects compliance.
  • adverse drug events help to decrease patient time.

Questão 58

Questão
In agent-based modeling, agents are
Responda
  • 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.

Questão 59

Questão
Agent-based modeling is best for all the following types of problem features EXCEPT
Responda
  • low uncertainty.
  • many interrelated factors.
  • irregular data.
  • complex interactions.

Questão 60

Questão
What is the final stage of an agent-based modeling (ABM) methodology?
Responda
  • validating agent behavior against reality
  • identifying the agents and determining their behavior
  • determining the suitability of ABM
  • determining agent-related data

Questão 61

Questão
In the InterContinental Hotel Group case study, the mathematical model used to increase profits was based on
Responda
  • 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.

Questão 62

Questão
Who are automated decision systems (ADS) primarily designed for?
Responda
  • 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

Questão 63

Questão
In the Giant Food Stores case study, the new pricing model deployment system included all the following features EXCEPT
Responda
  • 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.

Questão 64

Questão
Revenue management systems modify the prices of products and services dynamically based on
Responda
  • business rules, demand, and supply.
  • intuition, demand, and supply.
  • intuition, competition, and supply.
  • business rules, supply, and intuition.

Questão 65

Questão
What would explain why a divorce attorney in New York City may not be considered an expert in Beijing, China?
Responda
  • 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.

Questão 66

Questão
What does self-knowledge in an expert system (ES) mean?
Responda
  • 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.

Questão 67

Questão
How does an expert system differ from conventional systems?
Responda
  • 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.

Questão 68

Questão
In the sport talents identification case study, the expert system was calibrated with expertise from
Responda
  • subjects in the cases used to create the ES.
  • multiple sports experts.
  • one overall sports expert.
  • the system developer.

Questão 69

Questão
In the chemical, biological, and radiological agents case study, the CBR Advisor program had all the following features EXCEPT
Responda
  • 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.

Questão 70

Questão
The MYCIN Expert System was used to diagnose bacterial infections using
Responda
  • 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.

Questão 71

Questão
Which module is missing from most expert systems?
Responda
  • knowledge refinement subsystem
  • user interface subsystem
  • knowledge base subsystem
  • inference engine

Questão 72

Questão
All the following statements about how an expert system operates are true EXCEPT
Responda
  • 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.

Questão 73

Questão
In the heart disease diagnosis case study, what was a benefit of the SIPMES expert system?
Responda
  • 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.

Questão 74

Questão
Which of the following is NOT a stage of knowledge engineering?
Responda
  • knowledge consolidation
  • knowledge representation
  • knowledge acquisition
  • knowledge validation

Questão 75

Questão
It is difficult to acquire knowledge from experts for all the following reasons EXCEPT
Responda
  • 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.

Questão 76

Questão
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?
Responda
  • 70%
  • 100%
  • 30%
  • 21%

Questão 77

Questão
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?
Responda
  • 100%
  • 70%
  • 30%
  • 21%

Questão 78

Questão
Which category of expert systems that includes weather forecasting and economic/financial forecasting?
Responda
  • prediction ES
  • diagnostic ES
  • planning ES
  • instruction ES

Questão 79

Questão
Which tool would be best to use when there is a need to very rapidly and cheaply develop a rule-based expert system?
Responda
  • an ES shell
  • LISP or Prolog languages
  • ASP.NET
  • C++

Questão 80

Questão
In the Clinical Decision Support System case study, what was the system's output?
Responda
  • 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

Questão 81

Questão
In the Army expertise transfer system case, what did 'knowledge harvesting' involve?
Responda
  • 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

Questão 82

Questão
Knowledge can be best described as
Responda
  • 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.

Questão 83

Questão
Which of the following is NOT an attribute of knowledge?
Responda
  • 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.

Questão 84

Questão
Which is an example of conditional knowledge?
Responda
  • 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

Questão 85

Questão
Which is an example of declarative knowledge?
Responda
  • 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

Questão 86

Questão
The term "leaky knowledge" MOST accurately refers to
Responda
  • explicit knowledge.
  • tacit knowledge.
  • individual knowledge.
  • social knowledge.

Questão 87

Questão
Which approach to knowledge management capitalizes on tacit knowledge and requires heavy IT investment?
Responda
  • the process approach
  • the practice approach
  • the IT approach
  • the systems approach

Questão 88

Questão
During which stage of the KMS cycle are human insights captured together with explicit facts?
Responda
  • the refining knowledge stage
  • the managing knowledge stage
  • the disseminating knowledge stage
  • the storing knowledge stage

Questão 89

Questão
During which stage of the KMS cycle is knowledge made available to intended users?
Responda
  • the disseminating knowledge stage
  • the managing knowledge stage
  • the refining knowledge stage
  • the storing knowledge stage

Questão 90

Questão
Which technology element of knowledge management systems enables document sharing among decision makers?
Responda
  • collaboration
  • communication
  • storage
  • retrieval

Questão 91

Questão
Which set of technologies that support knowledge management is characterized by mashups, blogs, social networks, and wikis?
Responda
  • Web 2.0
  • artificial intelligence
  • XML
  • ERP

Questão 92

Questão
Distractions, groupthink, and digressions that occur in groupwork are known as
Responda
  • process losses.
  • malfunctions.
  • misunderstandings
  • group failure.

Questão 93

Questão
All the following are negative aspects of working in groups EXCEPT
Responda
  • it is more difficult to catch errors
  • there can be a lack of coordination
  • it is time-consuming
  • participants may be afraid to contribute

Questão 94

Questão
Videoconferencing is an example of what kind of groupware?
Responda
  • same time, different place
  • same time, same place
  • different time, same place
  • different time, different place

Questão 95

Questão
Which of the following is the best example of asynchronous communication?
Responda
  • e-mail
  • multimedia presentation system
  • teleconference
  • videoconference

Questão 96

Questão
Which groupware tools are associated with synchronous use?
Responda
  • VoIP and instant messaging
  • e-mail and web conferencing
  • VoIP and wikilogs
  • Web conference and online workspaces

Questão 97

Questão
All of the following statements about wikis are true EXCEPT
Responda
  • 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.

Questão 98

Questão
What is the major difference between group support systems (GSS) and group decision support systems (GDSS)?
Responda
  • 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.

Questão 99

Questão
What software or facility is best for a small firm spread out across the Northeast U.S. looking to inexpensively conduct regular videoconferencing?
Responda
  • WebEx
  • Excel
  • decision rooms
  • SharePoint

Questão 100

Questão
In the digital forensics case study, what was the main obstacle to knowledge sharing?
Responda
  • 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.

Questão 101

Questão
Using data to understand customers/clients and business operations to sustain and foster growth and profitability is
Responda
  • 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.

Questão 102

Questão
A newly popular unit of data in the Big Data era is the petabyte (PB), which is
Responda
  • 10^15 bytes.
  • 10^9 bytes.
  • 10^12 bytes.
  • 10^18 bytes.

Questão 103

Questão
Which of the following sources is likely to produce Big Data the fastest?
Responda
  • RFID tags
  • order entry clerks
  • cashiers
  • online customers

Questão 104

Questão
Data flows can be highly inconsistent, with periodic peaks, making data loads hard to manage. What is this feature of Big Data called?
Responda
  • Variability
  • volatility
  • periodicity
  • inconsistency

Questão 105

Questão
In the Luxottica case study, what technique did the company use to gain visibility into its customers?
Responda
  • data integration
  • visibility analytics
  • focus on growth
  • customer focus

Questão 106

Questão
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?
Responda
  • in-memory analytics
  • in-database analytics
  • grid computing
  • appliances

Questão 107

Questão
Which Big Data approach promotes efficiency, lower cost, and better performance by processing jobs in a shared, centrally managed pool of IT resources?
Responda
  • grid computing
  • in-memory analytics
  • in-database analytics
  • appliances

Questão 108

Questão
How does Hadoop work?
Responda
  • 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.

Questão 109

Questão
What is the Hadoop Distributed File System (HDFS) designed to handle?
Responda
  • unstructured and semistructured non-relational data
  • unstructured and semistructured relational data
  • structured and semistructured relational data
  • structured and semistructured non-relational data

Questão 110

Questão
In a Hadoop "stack," what is a slave node?
Responda
  • 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

Questão 111

Questão
In a Hadoop "stack," what node periodically replicates and stores data from the Name Node should it fail?
Responda
  • secondary node
  • backup node
  • substitute node
  • slave node

Questão 112

Questão
All of the following statements about MapReduce are true EXCEPT
Responda
  • MapReduce runs without fault tolerance.
  • MapReduce is a general-purpose execution engine.
  • MapReduce handles the complexities of network communication.
  • MapReduce handles parallel programming.

Questão 113

Questão
In the Big Data and Analytics in Politics case study, which of the following was an input to the analytic system?
Responda
  • census data
  • assessment of sentiment
  • voter mobilization
  • group clustering

Questão 114

Questão
In the Big Data and Analytics in Politics case study, what was the analytic system output or goal?
Responda
  • voter mobilization
  • census data
  • assessment of sentiment
  • group clustering

Questão 115

Questão
Traditional data warehouses have not been able to keep up with
Responda
  • the variety and complexity of data.
  • the evolution of the SQL language
  • expert systems that run on them.
  • OLAP.

Questão 116

Questão
Under which of the following requirements would it be more appropriate to use Hadoop over a data warehouse?
Responda
  • unrestricted, ungoverned sandbox explorations
  • ANSI 2003 SQL compliance is required
  • online archives alternative to tape
  • analysis of provisional data

Questão 117

Questão
What is Big Data's relationship to the cloud?
Responda
  • 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.

Questão 118

Questão
Companies with the largest revenues from Big Data tend to be
Responda
  • 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.

Questão 119

Questão
In the health sciences, the largest potential source of Big Data comes from
Responda
  • patient monitoring.
  • accounting systems.
  • human resources.
  • research administration.

Questão 120

Questão
In the Discovery Health insurance case study, the analytics application used available data to help the company do all of the following EXCEPT
Responda
  • open its own pharmacy.
  • predict customer health.
  • detect fraud.
  • lower costs for members.

Questão 121

Questão
What kind of location based analytics is real-time marketing promotion?
Responda
  • organization-oriented location-based dynamic approach
  • organization-oriented geospatial static approach
  • consumer-oriented geospatial static approach
  • consumer-oriented location-based dynamic approach

Questão 122

Questão
GPS Navigation is an example of which kind of location based analytics?
Responda
  • consumer-oriented geospatial static approach
  • organization-oriented geospatial static approach
  • organization-oriented location-based dynamic approach
  • consumer-oriented location-based dynamic approach

Questão 123

Questão
What new geometric data type in Teradata's data warehouse captures geospatial features?
Responda
  • ST_GEOMETRY
  • NAVTEQ
  • GIS
  • SQL/MM

Questão 124

Questão
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?
Responda
  • Footpath
  • Pathfinder
  • PathMiner
  • Pathdata

Questão 125

Questão
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)
Responda
  • gyroscope.
  • potentiometer.
  • microscope
  • oscilloscope.

Questão 126

Questão
Content-based filtering obtains detailed information about item characteristics and restricts this process to a single user using information tags or
Responda
  • keywords.
  • passphrases.
  • key-pairs.
  • reality mining

Questão 127

Questão
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?
Responda
  • originality
  • reusability
  • substitutability
  • extensibility

Questão 128

Questão
All of the following are components in a service-oriented DSS environment EXCEPT
Responda
  • data as infrastructure.
  • information technology as enabler.
  • process as beneficiary.
  • people as user.

Questão 129

Questão
Which of the following is true of data-as-a-Service (DaaS) platforms?
Responda
  • 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.

Questão 130

Questão
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?
Responda
  • data marts
  • information delivery portals
  • information services with library and administrator
  • extract, transform, load

Questão 131

Questão
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?
Responda
  • information services with library and administrator
  • information delivery portals
  • extract, transform, load
  • data marts

Questão 132

Questão
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?
Responda
  • metadata management
  • application programming interface
  • analytics
  • operations and administration

Questão 133

Questão
Which component of service-oriented DSS includes such examples as optimization, data mining, text mining, simulation, automated decision systems?
Responda
  • analytics
  • application programming interface
  • operations and administration
  • metadata management

Questão 134

Questão
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?
Responda
  • IaaS
  • EAI
  • EII
  • ETL

Questão 135

Questão
When new analytics applications are introduced and affect multiple related processes and departments, the organization is best served by utilizing
Responda
  • business process reengineering
  • business flow management.
  • multi-department analysis.
  • process flow analysis.

Questão 136

Questão
Research into managerial use of DSS and expert systems found all the following EXCEPT
Responda
  • 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

Questão 137

Questão
Why do analytics applications have the effect of redistributing power among managers?
Responda
  • 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.

Questão 138

Questão
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
Responda
  • single-sign-on facilities.
  • consumer access applications.
  • information collection portals.
  • consumer information sign on facilities.

Questão 139

Questão
Which of the following is true about the furtherance of homeland security?
Responda
  • 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.

Questão 140

Questão
Which of the following is considered the economic engine of the whole analytics industry?
Responda
  • analytics user organizations
  • application developers and system integrators
  • analytics industry analysts and influencers
  • academic providers and certification industries

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