DA0-002無料問題集「CompTIA Data+ Exam (2025)」

質問 1

Which of the following is business intelligence software?

（A）SAS

（B）Notepad++

（C）Python

（D）Tableau

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

A data analyst needs to join together a table data source and a web API data source using Python. Which of the following is the best way to accomplish this task?

（A）Convert the data from the API and database to a string format and convert them to pandas DataFrames that are then merged together.

（B）Convert the data from the API and database to a TXT format and convert them to pandas DataFrames that are then merged together.

（C）Convert the data from the API and database to a varchar format and convert them to pandas DataFrames that are then merged together.

（D）Convert the data from the API and database to a JSON format and convert them to pandas DataFrames that are then merged together.

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 receives a flat file that includes dates. The analyst needs to calculate the number of days from the dates on the file to the current date. Which of the following is the best way to complete this task?

（A）Convert data to date format and use date functions.

（B）Use date functions to analyze the data with no conversion.

（C）Validate the date format with logical functions and use date functions to analyze.

（D）Transform data to a numerical value and use mathematical functions.

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 4

A developer builds an online survey that requires all questions to have an answer. Which of the following inconsistencies does this setting prevent?

（A）Duplication

（B）Completeness

（C）Missing values

（D）Data corruption

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

A data breach occurs at a company. Which of the following actions should be taken?

（A）Tell the company management team and then tell regulatory agencies.

（B）Make an announcement on social media so customers are aware as soon as possible.

（C）Keep the incident a secret until the issue is resolved.

（D）Inform the entire IT sector, but ask for discretion.

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 6

A data analyst learns that a report detailing employee sales is reflecting sales only for the current month.
Which of the following is the most likely cause?

（A）Report refresh failure

（B）An error in SQL code

（C）Connectivity issues

（D）Lack of permissions

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 7

A company's analytics manager wants all reports to be delivered once every seven days. Which of the following is the best delivery method?

（A）Snapshot

（B）Ad hoc

（C）Recurring

（D）Custom

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 8

A product goes viral on social media, creating high demand. Distribution channels are facing supply chain issues because the testing and training models that are used for sales forecasting have not encountered similar demand. Which of the following best describes this situation?

（A）Incorrect sizing

（B）Model bias

（C）Skewing

（D）Data drift

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

A data analyst receives four files that need to be unified into a single spreadsheet for further analysis. All of the files have the same structure, number of columns, and field names, but each file contains different values.
Which of the following methods will help the analyst convert the files into a single spreadsheet?

（A）Parsing

（B）Appending

（C）Clustering

（D）Merging

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 10

Which of the following file types separates data using a delimiter?

（A）XML

（B）CSV

（C）JSON

（D）HTML

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)

DA0-002 無料問題集「CompTIA Data+ Exam (2025)」

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