Multiple Choice Answers

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Question 1
A star schema begins with a central dimension table that is linked to one or more fact tables.
True
False

Question 2
A data warehouse is just a large database.
True
False

Question 3
The relational model is one of the best database models.
True
False

Question 4
Business dashboards provide real-time views of data
True
False

Question 5
Data warehouses can be tuned for access since they are nonvolatile.
True
False

Question 6
Data quality is important because it can affect the quality of organizational decisions.
True
False

Question 7
There is a temporal quality to data warehouses.
True
False

Question 8
Data, information, and knowledge are essentially the same thing.
True
False

Question 9
Databases that include audio, video and picture formatted data are referred to as multimedia database management systems.
True
False

Question 10
A data mart must be created directly from a data warehouse.
True
False

Question 11
Data quality and data integrity are essentially the same thing.
True
False

Question 12
Data mining must use statistics to analyze data.
True
False

Question 13
Intrinsic data quality refers to the ease of understanding or interpretability of data.
True
False

Question 14
In many ways setting up a data warehouse is like setting up a separate database for DSS.
True
False

Question 15
Relational databases are called relational because they describe how the end-user interacts with the data.
True
False

Question 16
The two most common data warehouse architectures are three-tiered and four-tiered.
True
False

Question 17
Linear programming involves experimenting on a model of a system.
True
False

Question 18
Which model is designed to handle optimization of problems with few alternatives?
Decision trees
Markov analysis
Linear programming
Heuristic programming
Simulation

Question 19
The types of decision-making situations that may require analysis (in order of increasing complexity) are certainty, risk, and uncertainty.
True
False

Question 20
Expected values are computed by multiplying:
the largest expected results by their probability.
all results by their probabilities, then summing them up.
all results by their probabilities, then selecting the best.
all probabilities by their expected results.
all expected results by their probabilities.

Question 21
A DSS is designed to determine what will be; an MIS is designed to report what was.
True
False

Question 22
What-if analysis is effective in determining the level of input needed to achieve a desired result.
True
False

Question 23
Influence diagrams can be constructed with varying degrees of detail.
True
False

Question 24
A blind search is designed to support individual decision-makers with sight impairment.
True
False

Question 25
Decision-making under uncertainty is also called probabilistic decisionmaking.
True
False

Question 26
Decision trees are best suited for:
one decision in one period.
one decision over several periods.
several decisions over one period.
several decisions over several periods.
None of these.

Question 27
E-commerce has made the need for forecasting obsolete.
True
False

Question 28
Spreadsheet software, such as Microsoft Excel is capable of performing both what-if and goal seeking analysis.
True
False

Question 29
Stochastic decision-making is one in which the decision-maker considers several possible outcomes, each with a given probability of occurrence.
True
False

Question 30
Which model is designed to handle optimization via an algorithm?
Decision trees
Markov analysis
Linear programming
Heuristic programming
Simulation

Question 31
Save Decision trees are only applicable to problems under certainty.
True
False

Question 32
Decision trees are capable of handling multiple-goal problems.
True
False

Question 33
Project scope has a direct affect on project success.
True
False

Question 34
Prototyping is also referred to as iterative design.
True
False

Question 35
Prototyping is the single best DSS development methodology.
True
False

Question 36
DSS projects succeed more often than they fail or are challenged.
True
False

Question 37
Which of the following is a way to engage users in software development?
Turn off cell phones.
Use prototypes.
Focus on user, not IT problems.
Assign good communicators.
All of these.

Question 38
CASE tools consist of lower CASE, upper CASE and mixed CASE.
True
False

Question 39
Prototyping is a form of rapid application development.
True
False

Question 40
Spreadsheet errors are rare in industry.
True
False

Question 41
Analysis involves:
analyzing the problem.
gathering information.
determining model processes.
analyzing the problem, gathering information, and determining model processes.
None of these.

Question 42
Determining how a system will work is completed as part of the design phase.
True
False

Question 43
Project managers must have exceptional technical skills; it is far less important that they be a good project leader.
True
False

Question 44
User-developed DSS and end-user computing are essentially the same thing.
True
False

Question 45
The waterfall method generally results in faster development time than prototyping for DSS development.
True
False

Question 46
The Lewin-Schein change theory is only useful for introducing departmental change to an organization.
True
False

Question 47
Construction is completed in the implementation phase of the waterfall methodology.
True
False

Question 48
Staffing the DSS project is completed after analysis has been completed.
True
False

Question 49
Prototyping helps both the decision-makers and DSS developers learn about decision-making.
True
False

Question 50
Which of the following is a reason for using prototyping for DSS Development?
Learning is explicitly built into the design process.
The interval between iterations is short.
Low cost
It involves users during the development.
All of these.