CompTIA DA0-001 問題集

質問 1：
Refer to the exhibit.

Which of the following summary statements upholds integrity in data reporting?
A. Product D should be promoted more than the other products in all strategies.
B. While Strategy 2 does not result in the highest sales of Product D. over all products it appears to be the most effective.
C. Sales are approximately equal for Product A and Product B across all strategies.
D. Strategy 4 provides the best sales in comparison to other strategies.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
A sales manager wants quarterly sales reports broken down by unit and week. Which of the following data output lists includes the most necessary information?
A. Item name, salesperson. recipient address, shipping cost. and date shipped
B. Item name. salesperson. price. shipping cost. and date shipped
C. Item number, item name, salesperson. date sold. and price
D. Order number. salesperson. date shipped, recipient address, and price
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 3：
A data analyst for a media company needs to determine the most popular movie genre. Given the table below:

Which of the following must be done to the Genre column before this task can be completed?
A. Merge
B. Append
C. Concatenate
D. Delimit
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Which of the following best describes how discrete data differs from continuous data?
A. Discrete data applies only to numbers.
B. Discrete data can have decimal points.
C. Discrete data cannot create a sloped line.
D. Discrete data can only be a finite number of values.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
An analyst wants to create a historical data set for the past five years with each year in its own data set. Which of the following methods is the best way to create this historical data set?
A. Data transpose
B. Data normalization
C. Data concatenation
D. Data append
正解：C

質問 6：
A company's marketing department wants to do a promotional campaign next month. A data analyst on the team has been asked to perform customer segmentation, looking at how recently a customer bought the product, at what frequency, and at what value. Which of the following types of analysis would this practice be considered?
A. Gap
B. Prescriptive
C. Trend
D. Custer
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 7：
A reporting analyst is creating a dashboard that shows the year-over-year performance for a sales organization. Which of the following is the best visual for the analyst use to illustrate the organization's performance?
A. Scatter plot
B. Line chart
C. Heat map
D. Pie chart
正解：B

質問 8：
A data analyst needs to collect a similar proportion of data from every state. Which of the following sampling methods would be the most appropriate?
A. Convenience sampling
B. Random sampling
C. Stratified sampling
D. Systematic sampling
正解：C
解説: (Topexam メンバーにのみ表示されます)