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

質問 1

Which of the following data types would a telephone number formatted as XXX-XXX-XXXX be considered?

（A）Date

（B）Float

（C）Numeric

（D）Text

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 2

Which of the following is an example of a strategy to reduce statistical errors?

（A）Transformation

（B）Recoding data

（C）Removing outliers

（D）Adding more data

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 3

A data analyst is performing a data merge within a spreadsheet using the tables below:
https://www.bing.com/images/blob?bcid=S1XCF9p02M4GjpbGxHj0lrIaj9sw.....4c

The analyst is attempting to pull the addresses from Table 2 into Table 1 using the last names and is receiving an error message. Which of the following steps can the analyst perform to fix the error?

（A）Use concatenate to combine the tables.

（B）Sort the data by the last name field.

（C）Ensure the formula is pulling from right to left.

（D）Review the spelling and data type.

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 4

Which of the following is a non-parametric test?

（A）Correlation coefficient

（B）Two-way ANOVA

（C）Spearman's rank correlation

（D）One-sample t-test

正解：C 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 5

Which of the ing is the correct ion for a tab-delimited spre file?

（A）az

（B）tap

（C）sv

（D）tar

正解：C 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

Angela is aggregating data from CRM system with data from an employee system.
While performing an initial quality check, she realizes that her employee ID is not associated with her identifier in the CRM system.
What kind of issues is Angela facing?
Choose the best answer.

（A）Record linkage.

（B）ETL process.

（C）System integration.

（D）ELT process.

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 7

Which of the following best describe qualitative data? (Select two).

（A）Discrete

（B）Batch

（C）Ordinal

（D）Continuous

（E）Real-time

（F）Nominal

正解：C、F 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

A research analyst wants to determine whether the data being analyzed is connected to other datapoints.
Which of the following is the BEST type of analysis to conduct?

（A）Performance analysis

（B）Exploratory analysis

（C）Trend analysis

（D）Link analysis

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

Which of the following components need to be added to ensure the report is point-in-time and static? (Select 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：B、D 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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