A client builds a dashboard that presents current and long-term stock measures. Currently, the data is at a daily level. The data presents as a bar chart that presents monthly results over current and previous years. Some measures must present as monthly averages.
What should the consultant recommend to limit the data source for optimal performance?
A. Limit data to current and previous years and leave data at daily level to calculate the averages in the report.
B. Move calculating averages to data layer and aggregate dates to monthly level.
C. Limit data to current and previous years as well as to the last day of each month to eliminate the need to use the averages.
D. Limit data to current and previous years, move calculating averages to data layer, and aggregate dates to monthly level.
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 2:
A client wants to see the average number of orders per customer per month, broken down by region. The client has created the following calculated field:
Orders per Customer: {FIXED [Customer ID]: COUNTD([Order ID])}
The client then creates a line chart that plots AVG(Orders per Customer) over MONTH(Order Date) by Region. The numbers shown by this chart are far higher than the customer expects.
The client asks a consultant to rewrite the calculation so the result meets their expectation.
Which calculation should the consultant use?
A. {INCLUDE [Customer ID]: COUNTD([Order ID])}
B. {FIXED [Customer ID], [Region], [Order Date]: COUNTD([Order ID])}
C. {EXCLUDE [Customer ID]: COUNTD([Order ID])}
D. {FIXED [Customer ID], [Region]: COUNTD([Order ID])}
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
質問 3:
An online sales company has a table data source that contains Order Date. Products ship on the first day of each month for all orders from the previous month.
The consultant needs to know the average number of days that a customer must wait before a product is shipped.
Which calculation should the consultant use?
A. Calc1: DATETRUNC ('month', DATEADD('month', 1, [Order Date]))
Calc2: AVG(DATEDIFF ('week', [Order Date], [Calc1]))
B. Calc1: DATETRUNC ('month', DATEADD ('month', 1, [Order Date]))
Calc2: AVG(DATEDIFF ('day', [Order Date], [Calc1]))
C. Calc1: DATETRUNC ('day', DATEADD ('day', 31, [Order Date]))
Calc2: AVG ([Order Date] - [Calc1])
D. Calc1: DATETRUNC ('day', DATEADD('week', 4, [Order Date]))
Calc2: AVG([Order Date] - [Calc1])
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 4:
A client has a published data source in Tableau Server and they want to revert to the previous version of the data source. The solution must minimize the impact on users.
What should the consultant do to accomplish this task?
A. Select a previous version from Tableau Server, download it, and republish that data source.
B. Select a previous version from Tableau Server, and then click Restore.
C. Request that a server administrator restore a Tableau Server backup.
D. Delete and recreate the data source manually.
正解:B
解説: (Pass4Test メンバーにのみ表示されます)
質問 5:
From the desktop, open the CCworkbook. Use the US PopulationEstimates data source.
You need to shape the data in USPopulation Estimates by using TableauDesktop. The data must be formatted asshown in the following table.

Open the Population worksheet. Enterthe total number of records contained inthe data set into the Total Recordsparameter.
From the File menu in Tableau Desktop,click Save.
正解:
See the complete Steps below in Explanation:
Explanation:
To shape the data in the "US Population Estimates" data source and enter the total number of records into the
"Total Records" parameter in Tableau Desktop, follow these steps:
* Open the CC Workbook and Access the Worksheet:
* From the desktop, double-click on the CC workbook to open it in Tableau Desktop.
* Navigate to the Population worksheet by selecting its tab at the bottom of the window.
* Format and Shape the Data:
* Ensure the data types match those specified in the requirements: Sex, Origin, Race as strings; Year, Age, Population as whole numbers.
* To verify or change the data type, click on the dropdown arrow next to each field name in the Data pane and select "Change Data Type" if necessary.
* Calculate Total Number of Records:
* Create a new calculated field named "Total Records". To do this, right-click in the Data pane and select "Create Calculated Field".
* Enter the formulaCOUNT([Record ID])orSUM([Number of Records])depending on how the data source identifies each row uniquely.
* Drag this new calculated field onto the worksheet to display the total number of records.
* Enter the Value into the Total Records Parameter:
* Locate the "Total Records" parameter in the Data pane. Right-click on the parameter and select
"Edit".
* Manually enter the number displayed from the calculated field into the parameter, ensuring accuracy to meet the data shaping requirement.
* Save Your Changes:
* From the File menu, click 'Save' to ensure all your changes are stored.
References:
* Tableau Desktop Guide: Provides detailed instructions on managing data types, creating calculated fields, and updating parameters.
* Tableau Data Shaping Techniques: Outlines effective methods for manipulating and structuring data for analysis.
This process will ensure the data in the "US Population Estimates" is accurately shaped according to the specified format and that the total number of records is correctly calculated and entered into the designated parameter. This thorough approach ensures data integrity and accuracy in reporting.
質問 6:
A consultant builds a report where profit margin is calculated as SUM([Profit]) / SUM([Sales]). Three groups of users are organized on Tableau Server with the following levels of data access that they can be granted.
. Group 1: Viewers who cannot see any information on profitability
. Group 2: Viewers who can see profit and profit margin
. Group 3: Viewers who can see profit margin but not the value of profit Which approach should the consultant use to provide the required level of access?
A. Use user filters to access data on profitability to all groups. Then, create a calculated field that allows visibility of profit value to Group 2 and use the calculation in the view in the report.
B. Specify in the row-level security (RLS) entitlement table individuals who can see profit, profit margin, or none of these. Then, use the table data to create user filters in the report.
C. Specify with user filters in each view individuals who can see profit, profit margin, or none of these.
D. Use user filters to allow only Groups 2 and 3 access to data on profitability. Then, create a calculated field that limits visibility of profit value to Group 2 and use the calculation in the view in the report.
正解:D
解説: (Pass4Test メンバーにのみ表示されます)
Morishita -
図解は教科書的な必要事項を記したものの他、簡単になります。いい資料です!今後ともよろしくお願い申し上げます。