DA0-001無料問題集「CompTIA Data+ Certification」

質問 1

Each month an analyst needs to execute a data pull for the two prior months. Which of the following is the most efficient function for the analyst to use?

（A）Date

（B）Aggregate

（C）System

（D）Logical

正解：A 解答を投票する

質問 2

A development company is constructing a new unit in its apartment complex. The complex has the following floor plans:

Using the average cost per square foot of the original floor plans, which of the following should be the price of the Rose unit?

（A）$705,200

（B）$640,900

（C）$702,500

（D）$690,000

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below:

Which of the following charts would BEST represent the relationship between the variables?

（A）A histogram

（B）A bar chart

（C）A scatter plot

（D）A heat map

正解：C 解答を投票する

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質問 4

A sales director has requested a report for individual team members within the division be developed. The director would like the report to be shared with all team members, but individual team members should not be identifiable within the report Which of the following access requirements would support the director's needs?

（A）Create an acceptable use policy for the sales data.

（B）Provide the report based on role and include data encryption.

（C）Release the report as user-group-based access and include data masking.

（D）Get a data use agreement from the individual team members.

正解：C 解答を投票する

質問 5

A data analyst has been asked to merge the tables below, first performing an INNER JOIN and then a LEFT JOIN:

Customer Table -
In-store Transactions -

Which of the following describes the number of rows of data that can be expected after performing both joins in the order stated, considering the customer table as the main table?

（A）INNER: 15 rows; LEFT: 9 rows

（B）INNER: 9 rows; LEFT: 15 rows

（C）INNER: 9 rows; LEFT: 6 rows

（D）INNER: 6 rows; LEFT: 9 rows

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 6

Given the table below:

Which of the following variables can be considered inconsistent, and how many distinct values should the variable have?

正解：B 解答を投票する

質問 7

A sales team wants visibility of current sales numbers, pipeline, and team performance. The team would also like to see calculations of individuals' earned commissions and projected commissions based on sales, but they want that information to be kept confidential. Which of the following would be the BEST way to provide this visibility?

（A）Create a dashboard displaying a data refresh date so users know the current sales numbers and configure permissions to control access.

（B）Create a dashboard for sales numbers, pipeline, and team and individual performance for the management team.

（C）Create a dashboard with filters for the overall team, individuals, and management. Users can filter to see the data they want.

（D）Create a dashboard with views for team, individuals, and management. Configure permissions to control access.

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

Which of the following is an example of a flat file?

（A）JSON file

（B）JPEG file

（C）PDF file

（D）CSV file

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 9

Refer to the exhibit.
Given the following report:

Which of the following components need to be added to ensure the report is point-in-time and static? (Choose two.)

（A）A summary of the KPIs

（B）The date on which the report was run

（C）A control group for the phrases

（D）The time period the report covers

（E）The date when the report was last accessed

（F）Filter buttons for the status

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

A data set was recorded using multimedia technology. Which of the following is a necessary step on the way to interpretation?

（A）Sequential analysis

（B）Sampling

（C）Structural equation modeling

（D）Transcription

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 11

Refer to the exhibit.
Given the following graph:

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）Strategy 4 provides the best sales in comparison to other strategies.

（C）While Strategy 2 does not result in the highest sales of Product D, over all products it appears to be the most effective.

（D）Sales are approximately equal for Product A and Product B across all strategies.

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 12

A research analyst collects ten data points from 1.000 specimens. The analyst will not need any additional data to complete the analysis and will not need to retrieve information by specifier. Which of the following is the best data structure for the analyst to use?

（A）JSON

（B）Relational database

（C）NoSQL

（D）Flat file

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 13

A data analyst has been asked to organize the table below in the following ways:
By sales from high to low -
By state in alphabetic order -

Which of the following functions will allow the data analyst to organize the table in this manner?

（A）Sorting

（B）Conditional formatting

（C）Grouping

（D）Filtering

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 14

Randy scored 76 on a math test, Katie scored 86 on a science test, Ralph scored 80 on a history test, and Jean scored 80 on an English test. The table below contains the mean and standard deviation of the scores for each of the courses:

Using this information, which of the following students had the BEST score?

（A）Jean

（B）Katie

（C）Ralph

（D）Randy

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 15

Which of the following is a process that is used during data integration to collect, blend, and load data?

（A）ETL

（B）MDM

（C）BI

（D）OLTP

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

DA0-001 無料問題集「CompTIA Data+ Certification」

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