TDA-C01 無料問題集「Tableau Certified Data Analyst」
You have a dataset that contains daily sales by business segment from 2017 to the present You want to use monthly historical trends to predict sales by segment in the future Which three actions should you perform m order?
(Place the three correct options in order Use the arrows to move Options lo Answer Area I In Answer Area arrows to re order the options.)
(Place the three correct options in order Use the arrows to move Options lo Answer Area I In Answer Area arrows to re order the options.)
正解：
Explanation:
The correct order of the three actions is:
* Add the date to the Columns shelf. Add the segment and the sales to the Rows shelf.
* Aggregate the date to month and year.
* From the Analytics pane, drag Forecast to the worksheet.
The first action is to add the date to the Columns shelf and the segment and the sales to the Rows shelf. This will create a line chart that shows the daily sales by segment over time. You can use the Show Me menu to choose a line chart if it is not selected by default.
The second action is to aggregate the date to month and year. This will group the daily sales into monthly sales and show the yearly trend. You can right-click on the date field on the Columns shelf and select Month (January 2017) from the menu. You can also drag Year from the Dimensions pane to the Columns shelf before or after Month.
The third action is to drag Forecast from the Analytics pane to the worksheet. This will add a forecast that predicts future sales by segment based on historical trends. You can customize the forecast by clicking on it and using the options on the Marks card.
The other options are not relevant for this scenario. Adding a trend line would show a linear or nonlinear relationship between two measures, but not a prediction of future values. Creating a calculated field that uses the model quantile function would return a value from a statistical model based on a given quantile, but not a forecast.
References: https://help.tableau.com/current/pro/desktop/en-us/analytics.htm https://help.tableau.com/current
/pro/desktop/en-us/buildmanual_shelves.htm https://help.tableau.com/current/pro/desktop/en-us/dates.htm
https://help.tableau.com/current/pro/desktop/en-us/analytics_forecast.htm https://help.tableau.com/current/pro
/desktop/en-us/functions_functions_statistical.htm#MODEL_QUANTILE
You have the Mowing two tables that contains data about the books in a library.
Both tables are incomplete so there are books missing from the tables.
You need to combine the tables. The solution must ensure that all the data is retained Which type of join should you use?
Both tables are incomplete so there are books missing from the tables.
You need to combine the tables. The solution must ensure that all the data is retained Which type of join should you use?
正解：A
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解説: (JPNTest メンバーにのみ表示されます)
Open the link to Book1 found on the desktop. Open the Movie Durations worksheet.
Replace the existing data source with the Netflix_2019 data source.
Replace the existing data source with the Netflix_2019 data source.
正解：
check the steps below in explanation.
Explanation:
To replace the existing data source with the Netflix_2019 data source, you need to do the following steps:
* Open the link to Book1 found on the desktop. This will open the Tableau workbook that contains the Movie Durations worksheet.
* Click on the Movie Durations tab at the bottom of the workbook to open the worksheet. You will see a bar chart that shows the number of movies by duration for the existing data source.
* Go to the Data Source tab at the bottom of the workbook to see the data source page. You will see a table that shows the fields and values from the existing data source.
* Click on the drop-down arrow next to the data source name at the top of the page and select Replace Data Source from the menu. This will open a dialog box that allows you to replace your data source with another one.
* Select Netflix_2019 from the list of available data sources and click OK. This will replace your existing data source with the Netflix_2019 data source and update your worksheet accordingly. You may need to fix any broken fields or calculations that result from the replacement.
References: https://help.tableau.com/current/pro/desktop/en-us/datasource_replace.htm https://help.tableau.
com/current/pro/desktop/en-us/datasource_replace_workbook.htm
Explanation:
To replace the existing data source with the Netflix_2019 data source, you need to do the following steps:
* Open the link to Book1 found on the desktop. This will open the Tableau workbook that contains the Movie Durations worksheet.
* Click on the Movie Durations tab at the bottom of the workbook to open the worksheet. You will see a bar chart that shows the number of movies by duration for the existing data source.
* Go to the Data Source tab at the bottom of the workbook to see the data source page. You will see a table that shows the fields and values from the existing data source.
* Click on the drop-down arrow next to the data source name at the top of the page and select Replace Data Source from the menu. This will open a dialog box that allows you to replace your data source with another one.
* Select Netflix_2019 from the list of available data sources and click OK. This will replace your existing data source with the Netflix_2019 data source and update your worksheet accordingly. You may need to fix any broken fields or calculations that result from the replacement.
References: https://help.tableau.com/current/pro/desktop/en-us/datasource_replace.htm https://help.tableau.
com/current/pro/desktop/en-us/datasource_replace_workbook.htm
You have a database that includes field named sales, City and Region.
You have the following chart that shows the number of sales made in different cities.
You want to dynamically show the corresponding region when users hover their mouse over any of the bars.
What should you do?
You have the following chart that shows the number of sales made in different cities.
You want to dynamically show the corresponding region when users hover their mouse over any of the bars.
What should you do?
正解：A
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解説: (JPNTest メンバーにのみ表示されます)