IIBA CBDA 問題集

質問 1：
Results of the data analysis have been analyzed and the team was confident with the results but also quite surprised the outcome was not what was expected. In pondering the value of what can be gleaned from the data, the team has no feasible solution to put forth to address the business need.A logical next step would be to:
A. Provide the results to a 2nd analytics team to see if similar conclusions are drawn
B. Repeat the business analytics cycle with the formation of a new research question
C. Analyze the data again, to determine if any insights were overlooked
D. Check the quality of the data that was used for the analysis
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
A merger has been completed between two telecommunication companies and the analytic practices from both organizations are being joined. The newly formed analytics department will create a task force of data experts to combine the data from both companies into a structure usable for future analytics initiatives. Which of the following activities would provide a high level understanding about any potential data issues that might be encountered when merging sources?
A. Data conversion
B. Data profiling
C. Data migration
D. Data cleansing
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
The architecture team puts forth a solution architecture that integrates multiple data sources from within and outside the organization. The architecture provides the foundation to source a new analytics program. If one of the objectives of the analytics team was to provide 'one source of the truth', this objective would be referring to which of the following?
A. Ensuring stakeholders always have clear insight into the final requirements at all times
B. Enforcing master data management principles and practices
C. Evaluating the completeness, validity, and reliability of the data from source systems
D. Identifying one key stakeholder, who can make final decisions about which sources to relate/merge
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 4：
A company wants to run a monthly promotion on batteries that cost 15 cents each and sells for 50 cents. At this price, they typically sell 1000 batteries and generate a profit of 35 cents per battery for a total profit of
$350. The analytics team was asked to test two price points - 20% off (i.e. a sale price of 40 cents) and 40% off (i.e., a sale price of 30 cents). The survey data completed by 10000 participants was analyzed and showed that a 20% savings would result in sales of 1200 batteries and the 40% savings would result in 1800 batteries being sold. The team's initial recommendation was to recommend the 40% discount. Now that they are validating their recommendations, they decide to:
A. Question why management would only want them to test two price points
B. Change their recommendation realizing they have been victims of linear bias
C. Redo the survey looking for a larger sample size
D. Use their original recommendation given that the volume of sales is much higher
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
The outcome from an analytics initiative has resulted in key stakeholders wanting to move forward with a project to redesign the company's website. The business analyst has called a meeting to work on drafting a plan to assess the level of effort required to complete this work. Many of the invited participants redesigned the website before and were invited so they could provide estimates using their knowledge and experience from the past. The business analyst is using which method to estimate this work?
A. PERT
B. Parametric
C. Rolling wave
D. Rough order of magnitude
正解：D
解説: (Topexam メンバーにのみ表示されます)