Business Analytics & Intelligence - Set 6
1] Data transformation is further divided into how many steps?
i. 2 ii. 4
iii. 3 iv. None of these
2] Which step of data transformation maps data elements from the source data system to the destination data system and captures any transformation that must occur:
i. Data mapping ii. Cell mapping
iii. Code generation iv. None of these
3] _______ step takes the data element mapping specification and creates an executable program that can be run on a computer system
i. Code generation ii. Map generation
iii. Data mapping iv. None of theseANSWER : A
4] What reduces the number of values for a given continuous attribute by dividing the range of the attribute into intervals:
i. Data Reduction ii. Data Discretization
iii. Data Integration iv. None of theseANSWER : B
5] A concept hierarchy for a given numeric attribute defines a ____________ of the attribute:
i. Discretization ii. Normalization
iii. Standardization iv. All of theseANSWER : A
6] Concept hierarchies often can be generated automatically or dynamically refined based on which of the data distribution.
i. Predictive analysis ii. Statistical analysis
iii. Both i and ii iv. None of theseANSWER : B
7] Which data discretization technique defines “If the process starts by first finding one or a few points (called split points or cut points) to split the entire attribute range, and then repeats this recursively on the resulting intervals”.
i. Top-Down ii. Bottom-Up
iii. Left-Right iv. Right-LeftANSWER : A
8] Which data discretization technique defines “Starts by considering all of the continuous values as potential split- points, removes some by merging neighborhood values to form intervals, and then recursively applies this process to the resulting intervals”
i. Top-Down ii. Bottom-Up
iii. Left-Right iv. Right-Left
9] The sorted values after discretization are distributed into a number of buckets, or bins, and then replacing each bin value by either the bin _________.
i. Mean ii. Median
iii. Both i or ii iv. ModeANSWER : C
10] Which of the following is not a binning method:
i. Equal width partitioning ii. Equal depth partitioning
iii. Equal height partitioning iv. None of these
11] Concept hierarchies facilitate __________ in data warehouses to view data in multiple granularity:
i. Drilling and Rolling ii. Slicing and dicing
iii. Sampling iv. All of theseANSWER : A
12] The _______________ is the process of realizing a problem, establishing and evaluating planning criteria, creating alternatives, implementing alternatives, and monitoring progress of the alternatives.
i. Model Planning ii. Model Building
iii. Mapping iv. None of theseANSWER : A
13] The very similar rational decision-making model, as it is called in organizational behavior, is a process for making __________ decisions.
i. Logically sound ii. Efficient
iii. Accurate iv. ComplexANSWER : A
14] Rational decision making is a __________ process for making logically sound decisions that aims to follow the orderly path from problem identification through solution.
i. Single Step ii. Multi Step
iii. Hybrid iv. SystematicANSWER : B
15] Building models are scale models of structures and are commonly used in
i. Model railroading ii. Wargaming
iii. Diorama making iv. All of theseANSWER : D
16] In which phase the team builds and executes models based on the work done in the model planning phase.
i. Model Planning ii. Model Building
iii. Data Preparation iv. None of these
17] In which phase does the team explores the data to learn about the relationships between variables and subsequently selects key variables and the most suitable models.
i. Model Building ii. Operationalizing
iii. Model Planning iv. Discovery
18] In which phase does the team, in collaboration with major stakeholders, determines if the results of the project are a success or a failure based on the criteria developed in Phase 1
i. Communicate results ii. Operationalize
iii. Discovery iv. None of these
19] State true or false:
To communicate the findings effectively, these need to be understandable to clients who may know little about market research and who may even be unfamiliar with the specific market research project.
i. True ii. False
20] During this stage the team delivers final reports, briefings, code, and technical documents. In addition, the team may run a pilot project to implement the models in a production environment.
i. Communicate results ii. Operationalize
iii. Discovery iv. None of these
